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notes/2016 校招真题题解.md
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notes/2016 校招真题题解.md
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<!-- GFM-TOC -->
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* [ǰ<EFBFBD><EFBFBD>](#ǰ<><C7B0>)
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* [1. С<><D0A1>-С<><D0A1>Git](#1-С<><D0A1>-С<><D0A1>git)
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* [2. С<><D0A1>-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#2-С<><D0A1>-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
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* [3. С<><D0A1>-<2D>й<EFBFBD>ţ<EFBFBD><C5A3>](#3-С<><D0A1>-<2D>й<EFBFBD>ţ<EFBFBD><C5A3>)
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* [4. <><CEA2>-LUCKY STRING](#4-<><CEA2>-lucky-string)
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* [5. <><CEA2>-Numeric Keypad](#5-<><CEA2>-numeric-keypad)
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* [6. <><CEA2>-Spring Outing](#6-<><CEA2>-spring-outing)
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* [7. <><CEA2>-S-expression](#7-<><CEA2>-s-expression)
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* [8. <20><>Ϊ-<2D><><EFBFBD>߷<EFBFBD><DFB7>Ƕ<EFBFBD><C7B6><EFBFBD>](#8-<2D><>Ϊ-<2D><><EFBFBD>߷<EFBFBD><DFB7>Ƕ<EFBFBD><C7B6><EFBFBD>)
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* [9. <20><>Ϊ-<2D><EFBFBD><F2B5A5B4><EFBFBD><EFBFBD><EFBFBD>¼](#9-<2D><>Ϊ-<2D><EFBFBD><F2B5A5B4><EFBFBD><EFBFBD><EFBFBD>¼)
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* [10. <20><>Ϊ-<2D>˿<EFBFBD><CBBF>ƴ<EFBFBD>С](#10-<2D><>Ϊ-<2D>˿<EFBFBD><CBBF>ƴ<EFBFBD>С)
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* [11. ȥ<>Ķ<EFBFBD>-<2D><><EFBFBD>ֲ<EFBFBD><D6B2><EFBFBD>](#11-ȥ<>Ķ<EFBFBD>-<2D><><EFBFBD>ֲ<EFBFBD><D6B2><EFBFBD>)
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* [12. ȥ<>Ķ<EFBFBD>-<2D><EFBFBD><D7B8>ظ<EFBFBD><D8B8>ַ<EFBFBD>](#12-ȥ<>Ķ<EFBFBD>-<2D><EFBFBD><D7B8>ظ<EFBFBD><D8B8>ַ<EFBFBD>)
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* [13. ȥ<>Ķ<EFBFBD>-Ѱ<><D1B0>Coder](#13-ȥ<>Ķ<EFBFBD>-Ѱ<><D1B0>coder)
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* [14. <20><><EFBFBD><EFBFBD>-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ](#14-<2D><><EFBFBD><EFBFBD>-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ)
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* [15. <20><><EFBFBD><EFBFBD>-<2D><><EFBFBD>ӷ<EFBFBD>ת](#15-<2D><><EFBFBD><EFBFBD>-<2D><><EFBFBD>ӷ<EFBFBD>ת)
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* [16. <20><><EFBFBD><EFBFBD>-<2D>ݷ<EFBFBD>](#16-<2D><><EFBFBD><EFBFBD>-<2D>ݷ<EFBFBD>)
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* [17. <20><><EFBFBD><EFBFBD>-ֱ<><D6B1>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#17-<2D><><EFBFBD><EFBFBD>-ֱ<><D6B1>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
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* [18. <20><><EFBFBD><EFBFBD>-<2D>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#18-<2D><><EFBFBD><EFBFBD>-<2D>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
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* [19. <20><><EFBFBD><EFBFBD>-ƽ<><C6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#19-<2D><><EFBFBD><EFBFBD>-ƽ<><C6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
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* [20. <20>ٶ<EFBFBD>-<2D>ﷸת<EFB7B8><D7AA>](#20-<2D>ٶ<EFBFBD>-<2D>ﷸת<EFB7B8><D7AA>)
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* [22. <20>ٶ<EFBFBD>-<2D>ü<EFBFBD><C3BC><EFBFBD><EFBFBD><EFBFBD>ֽ](#22-<2D>ٶ<EFBFBD>-<2D>ü<EFBFBD><C3BC><EFBFBD><EFBFBD><EFBFBD>ֽ)
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* [23. <20>ٶ<EFBFBD>-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#23-<2D>ٶ<EFBFBD>-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
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* [24. <20>ٶ<EFBFBD>-Ģ<><C4A2><EFBFBD><EFBFBD>](#24-<2D>ٶ<EFBFBD>-Ģ<><C4A2><EFBFBD><EFBFBD>)
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<!-- GFM-TOC -->
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# ǰ<><C7B0>
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ʡ<EFBFBD>ԵĴ<EFBFBD><EFBFBD>룺
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```java
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import java.util.*;
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```
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```java
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public class Solution {
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}
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```
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```java
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public class Main {
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public static void main(String[] args) {
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Scanner in = new Scanner(System.in);
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while (in.hasNext()) {
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}
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}
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}
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```
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# 1. С<><D0A1>-С<><D0A1>Git
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- <20>ؽ<EFBFBD><D8BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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- ʹ<><CAB9> LCA
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```java
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private class TreeNode {
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int id;
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List<TreeNode> childs = new ArrayList<>();
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TreeNode(int id) {
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this.id = id;
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}
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}
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public int getSplitNode(String[] matrix, int indexA, int indexB) {
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int n = matrix.length;
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boolean[][] linked = new boolean[n][n]; // <20>ؽ<EFBFBD><D8BD>ڽӾ<DABD><D3BE><EFBFBD>
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for (int i = 0; i < n; i++) {
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for (int j = 0; j < n; j++) {
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linked[i][j] = matrix[i].charAt(j) == '1';
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}
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}
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TreeNode tree = constructTree(linked, 0);
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TreeNode ancestor = LCA(tree, new TreeNode(indexA), new TreeNode(indexB));
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return ancestor.id;
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}
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private TreeNode constructTree(boolean[][] linked, int root) {
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TreeNode tree = new TreeNode(root);
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for (int i = 0; i < linked[root].length; i++) {
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if (linked[root][i]) {
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linked[i][root] = false; // <20><>Ϊ<EFBFBD><CEAA>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD>ڽӾ<DABD><D3BE><EFBFBD><EFBFBD><EFBFBD>˫<EFBFBD><CBAB><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>תΪ<D7AA><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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tree.childs.add(constructTree(links, i));
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}
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}
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return tree;
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}
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private TreeNode LCA(TreeNode root, TreeNode p, TreeNode q) {
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if (root == null || root.id == p.id || root.id == q.id) return root;
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TreeNode ancestor = null;
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int cnt = 0;
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for (int i = 0; i < root.childs.size(); i++) {
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TreeNode tmp = LCA(root.childs.get(i), p, q);
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if (tmp != null) {
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ancestor = tmp;
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cnt++;
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}
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}
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return cnt == 2 ? root : ancestor;
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}
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```
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# 2. С<><D0A1>-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ʊ<EFBFBD>ʾΪ 1 <20><><EFBFBD><EFBFBD>һλ<D2BB><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC>λ<EFBFBD><CEBB>
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```java
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public int countBitDiff(int m, int n) {
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return Integer.bitCount(m ^ n);
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}
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```
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# 3. С<><D0A1>-<2D>й<EFBFBD>ţ<EFBFBD><C5A3>
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>СΪ 2 <20>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD>
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״̬ת<EFBFBD>Ʒ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>
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```html
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dp[i, j] = max(dp[i, j-1], prices[j] - prices[jj] + dp[i-1, jj]) { jj in range of [0, j-1] } = max(dp[i, j-1], prices[j] + max(dp[i-1, jj] - prices[jj]))
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```
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```java
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public int calculateMax(int[] prices) {
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int n = prices.length;
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int[][] dp = new int[3][n];
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for (int i = 1; i <= 2; i++) {
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int localMax = dp[i - 1][0] - prices[0];
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for (int j = 1; j < n; j++) {
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dp[i][j] = Math.max(dp[i][j - 1], prices[j] + localMax);
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localMax = Math.max(localMax, dp[i - 1][j] - prices[j]);
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}
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}
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return dp[2][n - 1];
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}
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```
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# 4. <><CEA2>-LUCKY STRING
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- 쳲<><ECB3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF><EFBFBD>Ԥ<EFBFBD><D4A4><EFBFBD>㣻
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- <20><>ͷ<EFBFBD><CDB7>β<EFBFBD><CEB2><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9>̣<EFBFBD>ÿһ<C3BF><D2BB>ѭ<EFBFBD><D1AD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>һ<EFBFBD><D2BB> Set <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> i <20><> j <20><><EFBFBD>ֵ<EFBFBD><D6B5>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Set <20><>֤<EFBFBD><D6A4><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Set <20>Ĵ<EFBFBD>С<EFBFBD><D0A1><EFBFBD>Dz<EFBFBD>ͬ<EFBFBD>ַ<EFBFBD><D6B7>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD><EFBFBD>
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```java
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Set<Integer> fibSet = new HashSet<>(Arrays.asList(1, 2, 3, 5, 8, 13, 21, 34, 55, 89));
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Scanner in = new Scanner(System.in);
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String str = in.nextLine();
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int n = str.length();
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Set<String> ret = new HashSet<>();
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for (int i = 0; i < n; i++) {
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Set<Character> set = new HashSet<>();
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for (int j = i; j < n; j++) {
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set.add(str.charAt(j));
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int cnt = set.size();
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if (fibSet.contains(cnt)) {
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ret.add(str.substring(i, j + 1));
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}
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}
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}
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String[] arr = ret.toArray(new String[ret.size()]);
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Arrays.sort(arr);
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for (String s : arr) {
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System.out.println(s);
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}
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```
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# 5. <><CEA2>-Numeric Keypad
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```java
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private static int[][] canReach = {
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{1, 0, 0, 0, 0, 0, 0, 0, 0, 0}, // 0
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{1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, // 1
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{1, 0, 1, 1, 0, 1, 1, 0, 1, 1}, // 2
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{0, 0, 0, 1, 0, 0, 1, 0, 0, 1}, // 3
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{1, 0, 0, 0, 1, 1, 1, 1, 1, 1}, // 4
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{1, 0, 0, 0, 0, 1, 1, 0, 1, 1}, // 5
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{0, 0, 0, 0, 0, 0, 1, 0, 0, 1}, // 6
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{1, 0, 0, 0, 0, 0, 0, 1, 1, 1}, // 7
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{1, 0, 0, 0, 0, 0, 0, 0, 1, 1}, // 8
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{0, 0, 0, 0, 0, 0, 0, 0, 0, 1} // 9
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};
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private static boolean isLegal(char[] chars, int idx) {
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if (idx >= chars.length || idx < 0) return true;
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int cur = chars[idx] - '0';
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int next = chars[idx + 1] - '0';
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return canReach[cur][next] == 1;
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}
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public static void main(String[] args) {
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Scanner in = new Scanner(System.in);
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int T = Integer.valueOf(in.nextLine());
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for (int i = 0; i < T; i++) {
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String line = in.nextLine();
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char[] chars = line.toCharArray();
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for (int j = 0; j < chars.length - 1; j++) {
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while (!isLegal(chars, j)) {
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if (--chars[j + 1] < '0') {
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chars[j--]--;
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}
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for (int k = j + 2; k < chars.length; k++) {
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chars[k] = '9';
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}
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}
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}
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System.out.println(new String(chars));
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}
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}
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```
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# 6. <><CEA2>-Spring Outing
|
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|
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<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> N = 3<><33>K = 4 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ۡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>ʼʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0 <20><><EFBFBD>ط<EFBFBD><D8B7><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>ص㣬Ҳ<E3A3AC><D2B2><EFBFBD>Ǵ<EFBFBD><C7B4>ڼ<EFBFBD><DABC>
|
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|
||||
<EFBFBD>ӵ<EFBFBD> 4 <20><><EFBFBD>ص㿪ʼͶƱ<CDB6><C6B1>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB>Ҫ<EFBFBD>Ƚϵ<C8BD> 4 <20><><EFBFBD>ط<EFBFBD><D8B7>͵<EFBFBD> 0 <20><><EFBFBD>ط<EFBFBD><D8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD><EFBFBD><EFBFBD><EFA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><D1A1><EFBFBD>˵<EFBFBD> 4 <20><><EFBFBD>ط<EFBFBD><D8B7><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><C3B4><EFBFBD>µ<EFBFBD> 4 <20><><EFBFBD>ط<EFBFBD><D8B7><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>ص㡣
|
||||
|
||||
<EFBFBD>Ӻ<EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD><EFBFBD>裬<EFBFBD><EFBFBD><EFBFBD>ϸ<EFBFBD><EFBFBD>´<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص㣬ֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еط<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD>ͶƱ<EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0 <20><><EFBFBD>ص<EFBFBD><D8B5><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>ص㣬<D8B5><E3A3AC><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD> 4 <20><><EFBFBD>ص<EFBFBD><D8B5><EFBFBD>ֻ<EFBFBD><D6BB>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD>бȽϣ<C8BD><CFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EEBFAA><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 <20><><EFBFBD>ص<EFBFBD><D8B5><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>ص㣬<D8B5><E3A3AC>ô<EFBFBD>ڶԵ<DAB6> 2 <20><><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD>ͶƱʱ<C6B1><CAB1>ÿ<EFBFBD><C3BF><EFBFBD>˲<EFBFBD><CBB2><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ǵ<EFBFBD> 2 <20><><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD> 1 <20><><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD>ҲҪ<D2B2><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͶƱ<CDB6>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD>
|
||||
|
||||
```java
|
||||
int N = in.nextInt();
|
||||
int K = in.nextInt();
|
||||
int[][] votes = new int[N][K + 1];
|
||||
for (int i = 0; i < N; i++) {
|
||||
for (int j = 0; j < K + 1; j++) {
|
||||
int place = in.nextInt();
|
||||
votes[i][place] = j;
|
||||
}
|
||||
}
|
||||
int ret = 0;
|
||||
for (int place = K; place > 0; place--) {
|
||||
int cnt = 0;
|
||||
for (int i = 0; i < N; i++) {
|
||||
if (votes[i][place] < votes[i][ret]) {
|
||||
cnt++;
|
||||
}
|
||||
}
|
||||
if (cnt > N / 2) {
|
||||
ret = place;
|
||||
}
|
||||
}
|
||||
System.out.println(ret == 0 ? "otaku" : ret);
|
||||
```
|
||||
|
||||
# 7. <><CEA2>-S-expression
|
||||
|
||||
# 8. <20><>Ϊ-<2D><><EFBFBD>߷<EFBFBD><DFB7>Ƕ<EFBFBD><C7B6><EFBFBD>
|
||||
|
||||
```java
|
||||
int N = in.nextInt();
|
||||
int M = in.nextInt();
|
||||
int[] scores = new int[N];
|
||||
for (int i = 0; i < N; i++) {
|
||||
scores[i] = in.nextInt();
|
||||
}
|
||||
for (int i = 0; i < M; i++) {
|
||||
String str = in.next();
|
||||
if (str.equals("U")) {
|
||||
int id = in.nextInt() - 1;
|
||||
int newScore = in.nextInt();
|
||||
scores[id] = newScore;
|
||||
} else {
|
||||
int idBegin = in.nextInt() - 1;
|
||||
int idEnd = in.nextInt() - 1;
|
||||
int ret = 0;
|
||||
if (idBegin > idEnd) {
|
||||
int t = idBegin;
|
||||
idBegin = idEnd;
|
||||
idEnd = t;
|
||||
}
|
||||
for (int j = idBegin; j <= idEnd; j++) {
|
||||
ret = Math.max(ret, scores[j]);
|
||||
}
|
||||
System.out.println(ret);
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
# 9. <20><>Ϊ-<2D><EFBFBD><F2B5A5B4><EFBFBD><EFBFBD><EFBFBD>¼
|
||||
|
||||
```java
|
||||
HashMap<String, Integer> map = new LinkedHashMap<>();
|
||||
while (in.hasNextLine()) {
|
||||
String s = in.nextLine();
|
||||
String key = s.substring(s.lastIndexOf('\\') + 1);
|
||||
map.put(key, map.containsKey(key) ? map.get(key) + 1 : 1);
|
||||
}
|
||||
List<Map.Entry<String, Integer>> list = new LinkedList<>(map.entrySet());
|
||||
Collections.sort(list, (o1, o2) -> o2.getValue() - o1.getValue());
|
||||
for (int i = 0; i < 8 && i < list.size(); i++) {
|
||||
String[] token = list.get(i).getKey().split(" ");
|
||||
String filename = token[0];
|
||||
String line = token[1];
|
||||
if (filename.length() > 16) filename = filename.substring(filename.length() - 16);
|
||||
System.out.println(filename + " " + line + " " + list.get(i).getValue());
|
||||
}
|
||||
```
|
||||
|
||||
# 10. <20><>Ϊ-<2D>˿<EFBFBD><CBBF>ƴ<EFBFBD>С
|
||||
|
||||
```java
|
||||
public class Main {
|
||||
|
||||
private Map<String, Integer> map = new HashMap<>();
|
||||
|
||||
public Main() {
|
||||
map.put("3", 0);
|
||||
map.put("4", 1);
|
||||
map.put("5", 2);
|
||||
map.put("6", 3);
|
||||
map.put("7", 4);
|
||||
map.put("8", 5);
|
||||
map.put("9", 6);
|
||||
map.put("10", 7);
|
||||
map.put("J", 8);
|
||||
map.put("Q", 9);
|
||||
map.put("K", 10);
|
||||
map.put("A", 11);
|
||||
map.put("2", 12);
|
||||
map.put("joker", 13);
|
||||
map.put("JOKER ", 14);
|
||||
}
|
||||
|
||||
private String play(String s1, String s2) {
|
||||
String[] token1 = s1.split(" ");
|
||||
String[] token2 = s2.split(" ");
|
||||
CardType type1 = computeCardType(token1);
|
||||
CardType type2 = computeCardType(token2);
|
||||
if (type1 == CardType.DoubleJoker) return s1;
|
||||
if (type2 == CardType.DoubleJoker) return s2;
|
||||
if (type1 == CardType.Bomb && type2 != CardType.Bomb) return s1;
|
||||
if (type2 == CardType.Bomb && type1 != CardType.Bomb) return s2;
|
||||
if (type1 != type2 || token1.length != token2.length) return "ERROR";
|
||||
for (int i = 0; i < token1.length; i++) {
|
||||
int val1 = map.get(token1[i]);
|
||||
int val2 = map.get(token2[i]);
|
||||
if (val1 != val2) return val1 > val2 ? s1 : s2;
|
||||
}
|
||||
return "ERROR";
|
||||
}
|
||||
|
||||
private CardType computeCardType(String[] token) {
|
||||
boolean hasjoker = false, hasJOKER = false;
|
||||
for (int i = 0; i < token.length; i++) {
|
||||
if (token[i].equals("joker")) hasjoker = true;
|
||||
else if (token[i].equals("JOKER")) hasJOKER = true;
|
||||
}
|
||||
if (hasjoker && hasJOKER) return CardType.DoubleJoker;
|
||||
int maxContinueLen = 1;
|
||||
int curContinueLen = 1;
|
||||
String curValue = token[0];
|
||||
for (int i = 1; i < token.length; i++) {
|
||||
if (token[i].equals(curValue)) curContinueLen++;
|
||||
else {
|
||||
curContinueLen = 1;
|
||||
curValue = token[i];
|
||||
}
|
||||
maxContinueLen = Math.max(maxContinueLen, curContinueLen);
|
||||
}
|
||||
if (maxContinueLen == 4) return CardType.Bomb;
|
||||
if (maxContinueLen == 3) return CardType.Triple;
|
||||
if (maxContinueLen == 2) return CardType.Double;
|
||||
boolean isStraight = true;
|
||||
for (int i = 1; i < token.length; i++) {
|
||||
if (map.get(token[i]) - map.get(token[i - 1]) != 1) {
|
||||
isStraight = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (isStraight && token.length == 5) return CardType.Straight;
|
||||
return CardType.Sigal;
|
||||
}
|
||||
|
||||
private enum CardType {
|
||||
DoubleJoker, Bomb, Sigal, Double, Triple, Straight;
|
||||
}
|
||||
|
||||
public static void main(String[] args) {
|
||||
Main main = new Main();
|
||||
Scanner in = new Scanner(System.in);
|
||||
while (in.hasNextLine()) {
|
||||
String s = in.nextLine();
|
||||
String[] token = s.split("-");
|
||||
System.out.println(main.play(token[0], token[1]));
|
||||
}
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
# 11. ȥ<>Ķ<EFBFBD>-<2D><><EFBFBD>ֲ<EFBFBD><D6B2><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD>Ԫ<EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>飬<EFBFBD><EFBFBD><EFBFBD>ֲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>㣺
|
||||
|
||||
- if (val <= A[m]) h = m;
|
||||
- <20><>Ϊ h <20>ĸ<EFBFBD>ֵΪ m <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> m - 1<><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD> while ѭ<><D1AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2>Ϊ l < h<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> m - 1 ѭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ l <= h<EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
public int getPos(int[] A, int n, int val) {
|
||||
int l = 0, h = n - 1;
|
||||
while (l < h) {
|
||||
int m = l + (h - l) / 2;
|
||||
if (val <= A[m]) h = m;
|
||||
else l = m + 1;
|
||||
}
|
||||
return A[h] == val ? h : -1;
|
||||
}
|
||||
```
|
||||
|
||||
# 12. ȥ<>Ķ<EFBFBD>-<2D><EFBFBD><D7B8>ظ<EFBFBD><D8B8>ַ<EFBFBD>
|
||||
|
||||
```java
|
||||
public char findFirstRepeat(String A, int n) {
|
||||
boolean[] hasAppear = new boolean[256];
|
||||
for (int i = 0; i < n; i++) {
|
||||
char c = A.charAt(i);
|
||||
if(hasAppear[c]) return c;
|
||||
hasAppear[c] = true;
|
||||
}
|
||||
return ' ';
|
||||
}
|
||||
```
|
||||
|
||||
# 13. ȥ<>Ķ<EFBFBD>-Ѱ<><D1B0>Coder
|
||||
|
||||
```java
|
||||
public String[] findCoder(String[] A, int n) {
|
||||
List<Pair<String, Integer>> list = new ArrayList<>();
|
||||
for (String s : A) {
|
||||
int cnt = 0;
|
||||
String t = s.toLowerCase();
|
||||
int idx = -1;
|
||||
while (true) {
|
||||
idx = t.indexOf("coder", idx + 1);
|
||||
if (idx == -1) break;
|
||||
cnt++;
|
||||
}
|
||||
if (cnt != 0) {
|
||||
list.add(new Pair<>(s, cnt));
|
||||
}
|
||||
}
|
||||
Collections.sort(list, (o1, o2) -> (o2.getValue() - o1.getValue()));
|
||||
String[] ret = new String[list.size()];
|
||||
for (int i = 0; i < list.size(); i++) {
|
||||
ret[i] = list.get(i).getKey();
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
// ţ<><C5A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><DEB7><EFBFBD><EFBFBD><EFBFBD> javafx.util.Pair<69><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD>ʵ<EFBFBD><CAB5>һ<EFBFBD><D2BB> Pair <20><>
|
||||
private class Pair<T, K> {
|
||||
T t;
|
||||
K k;
|
||||
|
||||
Pair(T t, K k) {
|
||||
this.t = t;
|
||||
this.k = k;
|
||||
}
|
||||
|
||||
T getKey() {
|
||||
return t;
|
||||
}
|
||||
|
||||
K getValue() {
|
||||
return k;
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
# 14. <20><><EFBFBD><EFBFBD>-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
|
||||
|
||||
̰<EFBFBD>IJ<EFBFBD><EFBFBD>ԡ<EFBFBD>
|
||||
|
||||
```java
|
||||
public int getDis(int[] A, int n) {
|
||||
int max = 0;
|
||||
int soFarMin = A[0];
|
||||
for (int i = 1; i < n; i++) {
|
||||
if(soFarMin > A[i]) soFarMin = A[i];
|
||||
else max = Math.max(max, A[i]- soFarMin);
|
||||
}
|
||||
return max;
|
||||
}
|
||||
```
|
||||
|
||||
# 15. <20><><EFBFBD><EFBFBD>-<2D><><EFBFBD>ӷ<EFBFBD>ת
|
||||
|
||||
```java
|
||||
public int[][] flipChess(int[][] A, int[][] f) {
|
||||
int[][] direction = {{0, 1}, {0, -1}, {1, 0}, {-1, 0}};
|
||||
for (int[] ff : f) {
|
||||
for (int[] dd : direction) {
|
||||
int r = ff[0] + dd[0] - 1, c = ff[1] + dd[1] - 1;
|
||||
if(r < 0 || r > 3 || c < 0 || c > 3) continue;
|
||||
A[r][c] ^= 1;
|
||||
}
|
||||
}
|
||||
return A;
|
||||
}
|
||||
```
|
||||
|
||||
# 16. <20><><EFBFBD><EFBFBD>-<2D>ݷ<EFBFBD>
|
||||
|
||||
```java
|
||||
private Set<String> paths;
|
||||
private List<Integer> curPath;
|
||||
|
||||
public int countPath(int[][] map, int n, int m) {
|
||||
paths = new HashSet<>();
|
||||
curPath = new ArrayList<>();
|
||||
for (int i = 0; i < n; i++) {
|
||||
for (int j = 0; j < m; j++) {
|
||||
if (map[i][j] == 1) {
|
||||
map[i][j] = -1;
|
||||
int[][] leftRightDirection = {{1, 0}, {-1, 0}};
|
||||
int[][] topDownDirection = {{0, 1}, {0, -1}};
|
||||
for (int[] lr : leftRightDirection) {
|
||||
for (int[] td : topDownDirection) {
|
||||
int[][] directions = {lr, td};
|
||||
backtracking(map, n, m, i, j, directions);
|
||||
}
|
||||
}
|
||||
return paths.size();
|
||||
}
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
private void backtracking(int[][] map, int n, int m, int r, int c, int[][] directions) {
|
||||
if (map[r][c] == 2) {
|
||||
String path = "";
|
||||
for (int num : curPath) {
|
||||
path += num;
|
||||
}
|
||||
paths.add(path);
|
||||
return;
|
||||
}
|
||||
for (int i = 0; i < directions.length; i++) {
|
||||
int nextR = r + directions[i][0];
|
||||
int nextC = c + directions[i][1];
|
||||
if (nextR < 0 || nextR >= n || nextC < 0 || nextC >= m || map[nextR][nextC] == -1) continue;
|
||||
map[nextR][nextC] = map[nextR][nextC] == 2 ? 2 : -1;
|
||||
curPath.add(nextR);
|
||||
curPath.add(nextC);
|
||||
backtracking(map, n, m, nextR, nextC, directions);
|
||||
curPath.remove(curPath.size() - 1);
|
||||
curPath.remove(curPath.size() - 1);
|
||||
map[nextR][nextC] = map[nextR][nextC] == 2 ? 2 : 0;
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
# 17. <20><><EFBFBD><EFBFBD>-ֱ<><D6B1>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
public int countArea(int[] A, int n) {
|
||||
int max = 0;
|
||||
for (int i = 0; i < n; i++) {
|
||||
int min = A[i];
|
||||
for (int j = i; j < n; j++) {
|
||||
min = Math.min(min, A[j]);
|
||||
max = Math.max(max, min * (j - i + 1));
|
||||
}
|
||||
}
|
||||
return max;
|
||||
}
|
||||
```
|
||||
|
||||
# 18. <20><><EFBFBD><EFBFBD>-<2D>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Сд<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 26 <EFBFBD><EFBFBD><EFBFBD>ơ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ıȽϺ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƚϲ<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>Ǵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҽ<EFBFBD><EFBFBD>бȽϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> "ac" <EFBFBD><EFBFBD> "abc"<22><><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ıȽϽ<EFBFBD><EFBFBD><EFBFBD>Ϊ "ac" > "abc"<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƚϣ<C8BD><CFA3><EFBFBD>Ϊ "abc" <20><><EFBFBD><EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD>ȿ<EFBFBD><EFBFBD>ܲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD> s1 <20>հײ<D5B0><D7B2>ֺ<EFBFBD> s2 <20><>Ӧ<EFBFBD><D3A6><EFBFBD>ֽ<EFBFBD><D6BD>бȽ<D0B1>ʱ<EFBFBD><CAB1>Ӧ<EFBFBD>ð<EFBFBD> s1 <20>Ŀհײ<D5B0><D7B2>ֿ<EFBFBD><D6BF><EFBFBD><EFBFBD><EFBFBD> 'a' <20>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>Ҫע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD>s1 <20><> s2 <20><><EFBFBD><EFBFBD>Ϊ len<sub>i</sub> <20><><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>Ƚ<EFBFBD>ǰ<EFBFBD><C7B0> i <20><><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 'aaa' <20><> 'bbb' <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 2 <20>ĸ<EFBFBD><C4B8><EFBFBD>Ϊ 'aa' <20><> 'bb' <20><><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>Ǻ<EFBFBD><C7BA>沿<EFBFBD>ֵ<EFBFBD><D6B5>ַ<EFBFBD><D6B7><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>ͳ<EFBFBD>Ƹ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> len1 <20><>ʼһֱ<D2BB><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϸ<EFBFBD><CFB7><EFBFBD><EFBFBD>ȣ<EFBFBD>ÿ<EFBFBD><C3BF>ѭ<EFBFBD><D1AD><EFBFBD><EFBFBD>ͳ<EFBFBD>Ƴ<EFBFBD><C6B3><EFBFBD>Ϊ i <20><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
String s1 = in.next();
|
||||
String s2 = in.next();
|
||||
int len1 = in.nextInt();
|
||||
int len2 = in.nextInt();
|
||||
int len = Math.min(s2.length(), len2);
|
||||
int[] subtractArr = new int[len];
|
||||
for (int i = 0; i < len; i++) {
|
||||
char c1 = i < s1.length() ? s1.charAt(i) : 'a';
|
||||
char c2 = s2.charAt(i);
|
||||
subtractArr[i] = c2 - c1;
|
||||
}
|
||||
int ret = 0;
|
||||
for (int i = len1; i <= len; i++) {
|
||||
for (int j = 0; j < i; j++) {
|
||||
ret += subtractArr[j] * Math.pow(26, i - j - 1);
|
||||
}
|
||||
}
|
||||
System.out.println(ret - 1);
|
||||
```
|
||||
|
||||
# 19. <20><><EFBFBD><EFBFBD>-ƽ<><C6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
int W = in.nextInt();
|
||||
double Y = in.nextDouble();
|
||||
double x = in.nextDouble();
|
||||
int N = in.nextInt();
|
||||
while (N-- > 0) {
|
||||
Y++; // <20><>Ա<EFBFBD><D4B1>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD><EFBFBD>䶼Ҫ<E4B6BC><D2AA> 1
|
||||
Y += (21 - Y) * x;
|
||||
}
|
||||
System.out.println((int) Math.ceil(Y));
|
||||
```
|
||||
|
||||
# 20. <20>ٶ<EFBFBD>-<2D>ﷸת<EFB7B8><D7AA>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ֺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>⣬<EFBFBD><EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD>ֺͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
int n = in.nextInt();
|
||||
int t = in.nextInt();
|
||||
int c = in.nextInt();
|
||||
int[] values = new int[n];
|
||||
for (int i = 0; i < n; i++) {
|
||||
values[i] = in.nextInt();
|
||||
}
|
||||
int cnt = 0;
|
||||
int totalValue = 0;
|
||||
for (int s = 0, e = c - 1; e < n; s++, e++) {
|
||||
if (s == 0) {
|
||||
for (int j = 0; j < c; j++) totalValue += values[j];
|
||||
} else {
|
||||
totalValue = totalValue - values[s - 1] + values[e];
|
||||
}
|
||||
if (totalValue <= t) cnt++;
|
||||
}
|
||||
System.out.println(cnt);
|
||||
```
|
||||
|
||||
# 22. <20>ٶ<EFBFBD>-<2D>ü<EFBFBD><C3BC><EFBFBD><EFBFBD><EFBFBD>ֽ
|
||||
|
||||
```java
|
||||
int n = in.nextInt();
|
||||
int minX, minY, maxX, maxY;
|
||||
minX = minY = Integer.MAX_VALUE;
|
||||
maxX = maxY = Integer.MIN_VALUE;
|
||||
for (int i = 0; i < n; i++) {
|
||||
int x = in.nextInt();
|
||||
int y = in.nextInt();
|
||||
minX = Math.min(minX, x);
|
||||
minY = Math.min(minY, y);
|
||||
maxX = Math.max(maxX, x);
|
||||
maxY = Math.max(maxY, y);
|
||||
}
|
||||
System.out.println((int) Math.pow(Math.max(maxX - minX, maxY - minY), 2));
|
||||
```
|
||||
|
||||
# 23. <20>ٶ<EFBFBD>-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
P ( <20><><EFBFBD>ٵ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD> ) = 1 - P ( һ<><D2BB>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> )
|
||||
|
||||
<EFBFBD>ӣ<EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫһ<EFBFBD><EFBFBD>һ<EFBFBD>н<EFBFBD><EFBFBD>ж<EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> in.nextDouble()<29><>
|
||||
|
||||
```java
|
||||
public static void main(String[] args) {
|
||||
Scanner in = new Scanner(System.in);
|
||||
while (in.hasNext()) {
|
||||
int n = in.nextInt();
|
||||
int m = in.nextInt();
|
||||
int x = in.nextInt();
|
||||
int y = in.nextInt();
|
||||
int t = in.nextInt();
|
||||
in.nextLine(); // <20><>
|
||||
double pcc = 0.0;
|
||||
double sum = 0.0;
|
||||
for (int i = 1; i <= n; i++) {
|
||||
String[] token = in.nextLine().split(" "); // <20><>
|
||||
for (int j = 1; j <= m; j++) {
|
||||
double p = Double.parseDouble(token[j - 1]);
|
||||
// double p = in.nextDouble();
|
||||
sum += p;
|
||||
if (i == x && j == y) {
|
||||
pcc = p;
|
||||
}
|
||||
}
|
||||
}
|
||||
double pss = sum / (n * m);
|
||||
pcc = computePOfIRT(pcc, t);
|
||||
pss = computePOfIRT(pss, t);
|
||||
System.out.println(pcc > pss ? "cc" : pss > pcc ? "ss" : "equal");
|
||||
System.out.printf("%.2f\n", Math.max(pcc, pss));
|
||||
}
|
||||
}
|
||||
|
||||
// compute probability of independent repeated trials
|
||||
private static double computePOfIRT(double p, int t) {
|
||||
return 1 - Math.pow((1 - p), t);
|
||||
}
|
||||
```
|
||||
|
||||
# 24. <20>ٶ<EFBFBD>-Ģ<><C4A2><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD>ݻᳬʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD> DP<44><50>
|
||||
|
||||
dp[i][j] <20><>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD> (i,j) λ<>ò<EFBFBD><C3B2>ᴥ<EFBFBD><E1B4A5>Ģ<EFBFBD><C4A2><EFBFBD>ĸ<EFBFBD><C4B8>ʡ<EFBFBD><CAA1><EFBFBD><EFBFBD><EFBFBD> N\*M <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> i == N || j == M<><4D><EFBFBD><EFBFBD>ô (i,j) ֻ<><D6BB><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¾<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD> 3 <20>к͵<D0BA> 3 <20><>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD>
|
||||
|
||||
|
||||
```java
|
||||
int N = in.nextInt();
|
||||
int M = in.nextInt();
|
||||
int K = in.nextInt();
|
||||
boolean[][] mushroom = new boolean[N][M];
|
||||
while (K-- > 0) {
|
||||
int x = in.nextInt();
|
||||
int y = in.nextInt();
|
||||
mushroom[x - 1][y - 1] = true;
|
||||
}
|
||||
double[][] dp = new double[N][M];
|
||||
dp[0][0] = 1;
|
||||
for (int i = 0; i < N; i++) {
|
||||
for (int j = 0; j < M; j++) {
|
||||
if (mushroom[i][j]) dp[i][j] = 0;
|
||||
else {
|
||||
double cur = dp[i][j];
|
||||
if (i == N - 1 && j == M - 1) break;
|
||||
if (i == N - 1) dp[i][j + 1] += cur;
|
||||
else if (j == M - 1) dp[i + 1][j] += cur;
|
||||
else {
|
||||
dp[i][j + 1] += cur / 2;
|
||||
dp[i + 1][j] += cur / 2;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
System.out.printf("%.2f\n", dp[N - 1][M - 1]);
|
||||
```
|
||||
399
notes/HTTP.md
Normal file
399
notes/HTTP.md
Normal file
@ -0,0 +1,399 @@
|
||||
<!-- GFM-TOC -->
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [Web<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#web<65><62><EFBFBD><EFBFBD>)
|
||||
* [URL](#url)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD>)
|
||||
* [HTTP <20><><EFBFBD><EFBFBD>](#http-<2D><><EFBFBD><EFBFBD>)
|
||||
* [GET<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>Դ](#get<65><74>ȡ<EFBFBD><C8A1>Դ)
|
||||
* [POST<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#post<73><74><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [HEAD<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD>](#head<61><64>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD>)
|
||||
* [PUT<EFBFBD><EFBFBD><EFBFBD>ϴ<EFBFBD><EFBFBD>ļ<EFBFBD>](#put<75>ϴ<EFBFBD><CFB4>ļ<EFBFBD>)
|
||||
* [DELETE<EFBFBD><EFBFBD>ɾ<EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>](#deleteɾ<65><C9BE><EFBFBD>ļ<EFBFBD>)
|
||||
* [OPTIONS<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯ֧<EFBFBD>ֵķ<EFBFBD><EFBFBD><EFBFBD>](#options<6E><73>ѯ֧<D1AF>ֵķ<D6B5><C4B7><EFBFBD>)
|
||||
* [RACE<EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD>](#race<65><D7B7>·<EFBFBD><C2B7>)
|
||||
* [CONNECT<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӵ<EFBFBD><EFBFBD><EFBFBD>](#connectҪ<74><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD><EFBFBD><EFBFBD><EFBFBD>Ӵ<EFBFBD><D3B4><EFBFBD>)
|
||||
* [HTTP ״̬<D7B4><CCAC>](#http-״̬<D7B4><CCAC>)
|
||||
* [2XX <20>ɹ<EFBFBD>](#2xx-<2D>ɹ<EFBFBD>)
|
||||
* [3XX <20>ض<EFBFBD><D8B6><EFBFBD>](#3xx-<2D>ض<EFBFBD><D8B6><EFBFBD>)
|
||||
* [4XX <20>ͻ<EFBFBD><CDBB>˴<EFBFBD><CBB4><EFBFBD>](#4xx-<2D>ͻ<EFBFBD><CDBB>˴<EFBFBD><CBB4><EFBFBD>)
|
||||
* [5XX <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#5xx-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [HTTP<EFBFBD>ײ<EFBFBD>](#http<74>ײ<EFBFBD>)
|
||||
* [ͨ<EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><EFBFBD>ֶ<EFBFBD>](#ͨ<><CDA8><EFBFBD>ײ<EFBFBD><D7B2>ֶ<EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><EFBFBD>ֶ<EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2>ֶ<EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD>Ӧ<EFBFBD>ײ<EFBFBD><EFBFBD>ֶ<EFBFBD>](#<23><>Ӧ<EFBFBD>ײ<EFBFBD><D7B2>ֶ<EFBFBD>)
|
||||
* [ʵ<EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><EFBFBD>ֶ<EFBFBD>](#ʵ<><CAB5><EFBFBD>ײ<EFBFBD><D7B2>ֶ<EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>)
|
||||
* [Cookie](#cookie)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23>־<EFBFBD><D6BE><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD>ֿ鴫<EFBFBD><EFBFBD>](#<23>ֿ鴫<D6BF><E9B4AB>)
|
||||
* [<EFBFBD>ಿ<EFBFBD>ֶ<EFBFBD><EFBFBD><EFBFBD>](#<23>ಿ<EFBFBD>ֶ<EFBFBD><D6B6><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD>Χ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><>Χ<EFBFBD><CEA7><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>Э<EFBFBD><D0AD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD>](#ͨ<><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>)
|
||||
* [HTTPs](#https)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD>֤](#<23><>֤)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
<!-- GFM-TOC -->
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## Web<65><62><EFBFBD><EFBFBD>
|
||||
|
||||
HTTP<EFBFBD><EFBFBD>HyperText Transfer Protocol<6F><6C><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD>飩<EFBFBD><E9A3A9>
|
||||
|
||||
WWW<EFBFBD><EFBFBD>Word Wide Web<65><62><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ּ<EFBFBD><D6BC><EFBFBD><EFBFBD><EFBFBD>HTML<4D><4C>HTTP<54><50>URL<52><4C>
|
||||
|
||||
RFC<EFBFBD><EFBFBD>Request for Comments<74><73><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>飩<EFBFBD><E9A3A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD><C4B5><EFBFBD>
|
||||
|
||||
## URL
|
||||
|
||||
URI<EFBFBD><EFBFBD>Uniform Resource Indentifier<65><72>ͳһ<CDB3><D2BB>Դ<EFBFBD><D4B4>ʶ<EFBFBD><CAB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>URL<52><4C>Uniform Resource Locator<6F><72>ͳһ<CDB3><D2BB>Դ<EFBFBD><D4B4>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>URN<52><4E>Uniform Resource Name<6D><65>ͳһ<CDB3><D2BB>Դ<EFBFBD><D4B4><EFBFBD>ƣ<EFBFBD><C6A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> urn:isbn:0-486-27557-4 <20><>URI <20><><EFBFBD><EFBFBD> URL <20><> URN<52><4E>Ŀǰ WEB ֻ<><D6BB> URL <20>Ƚ<EFBFBD><C8BD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> URL<52><4C>
|
||||
|
||||
URL<EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
|
||||
|
||||
**<EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
|
||||
|
||||
# HTTP <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD>ͻ<EFBFBD><EFBFBD>˷<EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>һ<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˷<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶΡ<EFBFBD>
|
||||
|
||||
## GET<45><54><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1>Դ
|
||||
|
||||
## POST<53><54><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
POST <20><>ҪĿ<D2AA>IJ<EFBFBD><C4B2>ǻ<EFBFBD>ȡ<EFBFBD><C8A1>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD>Ǵ<EFBFBD><C7B4><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>
|
||||
|
||||
GET <20><> POST <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> GET <20>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD>ѯ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> URL<52>У<EFBFBD><D0A3><EFBFBD> POST <20>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD>洢<EFBFBD><E6B4A2>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD>岿<EFBFBD>֡<EFBFBD>
|
||||
|
||||
```
|
||||
GET /test/demo_form.asp?name1=value1&name2=value2 HTTP/1.1
|
||||
```
|
||||
```
|
||||
POST /test/demo_form.asp HTTP/1.1
|
||||
Host: w3schools.com
|
||||
name1=value1&name2=value2
|
||||
```
|
||||
|
||||
GET <20>Ĵ<EFBFBD><C4B4>η<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> POST <20><>ȫ<EFBFBD>Խϲ<CFB2><EEA3AC>Ϊ GET <20><><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD> URL <20>ǿɼ<C7BF><C9BC>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD>ܻ<EFBFBD>й¶˽<C2B6><CBBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> GET ֻ֧<D6BB><D6A7> ASCII <20>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܻ<EFBFBD><DCBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬<EFBFBD><EBA3AC> POST ֧<>ֱ<EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## HEAD<41><44><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> GET <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Dz<EFBFBD><C7B2><EFBFBD><EFBFBD>ر<EFBFBD><D8B1><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD>岿<EFBFBD>֡<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD> URL <20><><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD>µ<EFBFBD><C2B5><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>ȡ<EFBFBD>
|
||||
|
||||
## PUT<55><54><EFBFBD>ϴ<EFBFBD><CFB4>ļ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><EFBFBD>κ<EFBFBD><EFBFBD>˶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϴ<EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˴<EFBFBD><EFBFBD>ڰ<EFBFBD>ȫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⣬һ<EFBFBD><EFBFBD> WEB <20><>վ<EFBFBD><D5BE>ʹ<EFBFBD>ø÷<C3B8><C3B7><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## DELETE<54><45>ɾ<EFBFBD><C9BE><EFBFBD>ļ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> PUT <20><><EFBFBD><EFBFBD><EFBFBD>෴<EFBFBD><E0B7B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4><EFBFBD>ơ<EFBFBD>
|
||||
|
||||
## OPTIONS<4E><53><EFBFBD><EFBFBD>ѯ֧<D1AF>ֵķ<D6B5><C4B7><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>ѯָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> URL <20>ܹ<EFBFBD>֧<EFBFBD>ֵķ<D6B5><C4B7><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD>᷵<EFBFBD><EFBFBD> Allow: GET, POST, HEAD, OPTIONS <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>
|
||||
|
||||
## RACE<43><45><EFBFBD><D7B7>·<EFBFBD><C2B7>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ὣͨ<EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD><EFBFBD>ͻ<EFBFBD><EFBFBD>ˡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> Max-Forwards <20>ײ<EFBFBD><D7B2>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD> 1<><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵΪ 0 ʱ<><CAB1>ֹͣ<CDA3><D6B9><EFBFBD>䡣
|
||||
|
||||
TRACE һ<>㲻<EFBFBD><E3B2BB>ʹ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܵ<EFBFBD> XST <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Cross-Site Tracing<6E><67><EFBFBD><EFBFBD>վ<D5BE>٣<EFBFBD><D9A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˸<EFBFBD><CBB8><EFBFBD><EFBFBD><EFBFBD>ȥʹ<C8A5><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
## CONNECT<43><54>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD><EFBFBD><EFBFBD><EFBFBD>Ӵ<EFBFBD><D3B4><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> TCP ͨ<>š<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>Ҫʹ<EFBFBD><EFBFBD> SSL<53><4C>Secure Sokets Layer<65><72><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD><D7BD>֣<EFBFBD><D6A3><EFBFBD> TLS<4C><53>Transport Layer Security<74><79><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㰲ȫ<E3B0B2><C8AB>Э<EFBFBD><D0AD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD>ݼ<EFBFBD><DDBC>ܺ<EFBFBD><DCBA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䡣
|
||||
|
||||
|
||||
|
||||
# HTTP ״̬<D7B4><CCAC>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>һ<EFBFBD><EFBFBD>Ϊ״̬<EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֪<EFBFBD>ͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
| ״̬<D7B4><CCAC> | <20><><EFBFBD><EFBFBD> | ԭ<><D4AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| --- | --- | --- |
|
||||
| 1XX | Informational<61><6C><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>״̬<D7B4>룩 | <20><><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD> |
|
||||
| 2XX | Success<73><73><EFBFBD>ɹ<EFBFBD>״̬<D7B4>룩 | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| 3XX | Redirection<6F><6E><EFBFBD>ض<EFBFBD><D8B6><EFBFBD>״̬<D7B4>룩 | <20><>Ҫ<EFBFBD><D2AA><EFBFBD>и<EFBFBD><D0B8>Ӳ<EFBFBD><D3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| 4XX | Client Error<6F><72><EFBFBD>ͻ<EFBFBD><CDBB>˴<EFBFBD><CBB4><EFBFBD>״̬<D7B4>룩 | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><DEB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| 5XX | Server Error<6F><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<D7B4>룩 | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
|
||||
## 2XX <20>ɹ<EFBFBD>
|
||||
|
||||
**200 OK**
|
||||
|
||||
**204 No Content**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>岿<EFBFBD>֡<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>Ҫ<EFBFBD>ӿͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱʹ<EFBFBD>á<EFBFBD>
|
||||
|
||||
**206 Partial Content**
|
||||
|
||||
## 3XX <20>ض<EFBFBD><D8B6><EFBFBD>
|
||||
|
||||
**301 Moved Permanently**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ض<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**302 Found**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ض<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**303 See Other**
|
||||
|
||||
ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ HTTP Э<><D0AD><EFBFBD>涨 301<30><31>302 ״̬<D7B4><CCAC><EFBFBD>ض<EFBFBD><D8B6><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> POST <20><><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD> GET <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǵ<EFBFBD><C7B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 301<30><31>302 <20><> 303 ״̬<D7B4>µ<EFBFBD><C2B5>ض<EFBFBD><D8B6><EFBFBD><EFBFBD><EFBFBD> POST <20><><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD> GET <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**304 Not Modified**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һЩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>磺If-Match<63><68>If-ModifiedSince<63><65>If-None-Match<63><68>If-Range<67><65>If-Unmodified-Since<63><65><EFBFBD><EFBFBD><EFBFBD>Dz<EFBFBD><C7B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>᷵<EFBFBD><E1B7B5> 304 ״̬<D7B4>롣
|
||||
|
||||
**307 Temporary Redirect**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>ض<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 302 <20>ĺ<EFBFBD><C4BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><C6A3><EFBFBD><EFBFBD><EFBFBD> 307 Ҫ<><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ض<EFBFBD><D8B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> POST <20><><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD> GET <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## 4XX <20>ͻ<EFBFBD><CDBB>˴<EFBFBD><CBB4><EFBFBD>
|
||||
|
||||
**400 Bad Request**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**401 Unauthorized**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD> HTTP <20><>֤<EFBFBD><D6A4>BASIC <20><>֤<EFBFBD><D6A4>DIGEST <20><>֤<EFBFBD><D6A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮ǰ<D6AE>ѽ<EFBFBD><D1BD>й<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD>û<EFBFBD><C3BB><EFBFBD>֤ʧ<D6A4>ܡ<EFBFBD>
|
||||
|
||||
|
||||
|
||||
**403 Forbidden**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>б<EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϸ<EFBFBD><EFBFBD><EFBFBD>ɡ<EFBFBD>
|
||||
|
||||
**404 Not Found**
|
||||
|
||||
## 5XX <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**500 Internal Server Error**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**503 Service Unavilable**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڽ<EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><EFBFBD>ά<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
# HTTP<54>ײ<EFBFBD>
|
||||
|
||||
HTTP <20><><EFBFBD>İ<EFBFBD><C4B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֡<EFBFBD><D6A1><EFBFBD> 4 <20><><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><CDB5>ײ<EFBFBD><D7B2>ֶΣ<D6B6>ͨ<EFBFBD><CDA8><EFBFBD>ײ<EFBFBD><D7B2>ֶΡ<D6B6><CEA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2>ֶΡ<D6B6><CEA1><EFBFBD>Ӧ<EFBFBD>ײ<EFBFBD><D7B2>ֶκ<D6B6>ʵ<EFBFBD><CAB5><EFBFBD>ײ<EFBFBD><D7B2>ֶΡ<D6B6><CEA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2>ֶμ<D6B6><CEBC>京<EFBFBD><E4BAAC><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD><C2A3><EFBFBD><EFBFBD><EFBFBD>Ҫȫ<D2AA>ǣ<EFBFBD><C7A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD>
|
||||
|
||||
## ͨ<><CDA8><EFBFBD>ײ<EFBFBD><D7B2>ֶ<EFBFBD>
|
||||
|
||||
| <20>ײ<EFBFBD><D7B2>ֶ<EFBFBD><D6B6><EFBFBD> | ˵<><CBB5> |
|
||||
| -- | -- |
|
||||
| Cache-Control | <20><><EFBFBD>ƻ<EFBFBD><C6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ |
|
||||
| Connection | <20><><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2><EFBFBD> <20><><EFBFBD>ӵĹ<D3B5><C4B9><EFBFBD> |
|
||||
| Date | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD><C4B5><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> |
|
||||
| Pragma | <20><><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8> |
|
||||
| Trailer | <20><><EFBFBD><EFBFBD>ĩ<EFBFBD>˵<EFBFBD><CBB5>ײ<EFBFBD>һ<EFBFBD><D2BB> |
|
||||
| Transfer-Encoding | ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뷽ʽ |
|
||||
| Upgrade | <20><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> |
|
||||
| Via | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ |
|
||||
| Warning | <20><><EFBFBD><EFBFBD>֪ͨ |
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2>ֶ<EFBFBD>
|
||||
|
||||
| <20>ײ<EFBFBD><D7B2>ֶ<EFBFBD><D6B6><EFBFBD> | ˵<><CBB5> |
|
||||
| -- | -- |
|
||||
| Accept | <20>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɴ<EFBFBD><C9B4><EFBFBD><EFBFBD><EFBFBD>ý<EFBFBD><C3BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| Accept-Charset | <20><><EFBFBD>ȵ<EFBFBD><C8B5>ַ<EFBFBD><D6B7><EFBFBD> |
|
||||
| Accept-Encoding | <20><><EFBFBD>ȵ<EFBFBD><C8B5><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD> |
|
||||
| Accept-Language | <20><><EFBFBD>ȵ<EFBFBD><C8B5><EFBFBD><EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD>ԣ<EFBFBD> |
|
||||
| Authorization | Web<65><62>֤<EFBFBD><D6A4>Ϣ |
|
||||
| Expect | <20>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ض<EFBFBD><D8B6><EFBFBD>Ϊ |
|
||||
| From | <20>û<EFBFBD><C3BB>ĵ<EFBFBD><C4B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ |
|
||||
| Host | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD>ڷ<EFBFBD><DAB7><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| If-Match | <20>Ƚ<EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD>ETag<61><67> |
|
||||
| If-Modified-Since | <20>Ƚ<EFBFBD><C8BD><EFBFBD>Դ<EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD>ʱ<EFBFBD><CAB1> |
|
||||
| If-None-Match | <20>Ƚ<EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD><C7A3><EFBFBD> If-Match <20>෴<EFBFBD><E0B7B4> |
|
||||
| If-Range | <20><>Դδ<D4B4><CEB4><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5> Byte <20>ķ<EFBFBD>Χ<EFBFBD><CEA7><EFBFBD><EFBFBD> |
|
||||
| If-Unmodified-Since | <20>Ƚ<EFBFBD><C8BD><EFBFBD>Դ<EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD>ʱ<EFBFBD>䣨<EFBFBD><E4A3A8>If-Modified-Since<63>෴<EFBFBD><E0B7B4> |
|
||||
| Max-Forwards | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| Proxy-Authorization | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ͻ<EFBFBD><CDBB>˵<EFBFBD><CBB5><EFBFBD>֤<EFBFBD><D6A4>Ϣ |
|
||||
| Range | ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD>ֽڷ<D6BD>Χ<EFBFBD><CEA7><EFBFBD><EFBFBD> |
|
||||
| Referer | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> URI <20><>ԭʼ<D4AD><CABC>ȡ<EFBFBD><C8A1> |
|
||||
| TE | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD> |
|
||||
| User-Agent | HTTP <20>ͻ<EFBFBD><CDBB>˳<EFBFBD><CBB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ |
|
||||
|
||||
## <20><>Ӧ<EFBFBD>ײ<EFBFBD><D7B2>ֶ<EFBFBD>
|
||||
|
||||
| <20>ײ<EFBFBD><D7B2>ֶ<EFBFBD><D6B6><EFBFBD> | ˵<><CBB5> |
|
||||
| -- | -- |
|
||||
| Accept-Ranges | <20>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽڷ<D6BD>Χ<EFBFBD><CEA7><EFBFBD><EFBFBD> |
|
||||
| Age | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> |
|
||||
| ETag | <20><>Դ<EFBFBD><D4B4>ƥ<EFBFBD><C6A5><EFBFBD><EFBFBD>Ϣ |
|
||||
| Location | <20><><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD>ض<EFBFBD><D8B6><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>URI |
|
||||
| Proxy-Authenticate | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կͻ<D4BF><CDBB>˵<EFBFBD><CBB5><EFBFBD>֤<EFBFBD><D6A4>Ϣ |
|
||||
| Retry-After | <20><><EFBFBD>ٴη<D9B4><CEB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>Ҫ<EFBFBD><D2AA> |
|
||||
| Server | HTTP<54><50><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>İ<EFBFBD>װ<EFBFBD><D7B0>Ϣ |
|
||||
| Vary | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9><EFBFBD><EFBFBD><EFBFBD>Ϣ |
|
||||
| WWW-Authenticate | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կͻ<D4BF><CDBB>˵<EFBFBD><CBB5><EFBFBD>֤<EFBFBD><D6A4>Ϣ |
|
||||
|
||||
## ʵ<><CAB5><EFBFBD>ײ<EFBFBD><D7B2>ֶ<EFBFBD>
|
||||
|
||||
| <20>ײ<EFBFBD><D7B2>ֶ<EFBFBD><D6B6><EFBFBD> | ˵<><CBB5> |
|
||||
| -- | -- |
|
||||
| Allow | <20><>Դ<EFBFBD><D4B4>֧<EFBFBD>ֵ<EFBFBD>HTTP<54><50><EFBFBD><EFBFBD> |
|
||||
| Content-Encoding | ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õı<C3B5><C4B1>뷽ʽ |
|
||||
| Content-Language | ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD> |
|
||||
| Content-Length | ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD>λ<EFBFBD><CEBB> <20>ֽڣ<D6BD> |
|
||||
| Content-Location | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>Դ<EFBFBD><D4B4>URI |
|
||||
| Content-MD5 | ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><C4B1><EFBFBD>ժҪ |
|
||||
| Content-Range | ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD>÷<EFBFBD>Χ |
|
||||
| Content-Type | ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ý<EFBFBD><C3BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| Expires | ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> |
|
||||
| Last-Modified | <20><>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><DEB8><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> |
|
||||
|
||||
# <20><><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>
|
||||
|
||||
## Cookie
|
||||
|
||||
HTTP Э<><D0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<D7B4>ģ<EFBFBD><C4A3><EFBFBD>Ҫ<EFBFBD><D2AA>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD> HTTP Э<>龡<EFBFBD><E9BEA1><EFBFBD>ܼ<DCBC>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>HTTP/1.1 <20><><EFBFBD><EFBFBD> Cookie <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<D7B4><CCAC>Ϣ<EFBFBD><CFA2>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᷢ<EFBFBD>͵<EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD>İ<EFBFBD><EFBFBD><EFBFBD> Set-Cookie <20>ֶΣ<D6B6><CEA3>ͻ<EFBFBD><CDBB>˵õ<CBB5><C3B5><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD> Cookie <20><><EFBFBD>ݱ<EFBFBD><DDB1>浽<EFBFBD><E6B5BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1>´<EFBFBD><C2B4>ٷ<EFBFBD><D9B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><D0B6><EFBFBD> Cookie ֵ<><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>а<EFBFBD><D0B0><EFBFBD> Cookie <20>ֶΣ<D6B6><CEA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֪<EFBFBD><D6AA><EFBFBD>ͻ<EFBFBD><CDBB>˵<EFBFBD>״̬<D7B4><CCAC>Ϣ<EFBFBD>ˡ<EFBFBD>Cookie ״̬<D7B4><CCAC>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD>ڿͻ<DABF><CDBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϡ<EFBFBD>
|
||||
|
||||
|
||||
|
||||
Set-Cookie <20>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD>
|
||||
|
||||
| <20><><EFBFBD><EFBFBD> | ˵<><CBB5> |
|
||||
| -- | -- |
|
||||
| NAME=VALUE | <20><><EFBFBD><EFBFBD> Cookie <20><><EFBFBD><EFBFBD><EFBFBD>ƺ<EFBFBD><C6BA><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| expires=DATE | Cookie <20><><EFBFBD><EFBFBD>Ч<EFBFBD>ڣ<EFBFBD><DAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷָ<C8B7><D6B8><EFBFBD><EFBFBD>Ĭ<EFBFBD><C4AC>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ر<EFBFBD>ǰΪֹ<CEAA><D6B9> |
|
||||
| path=PATH | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5>ļ<EFBFBD>Ŀ¼<C4BF><C2BC>Ϊ Cookie <20><><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>Ĭ<EFBFBD><C4AC>Ϊ<EFBFBD>ĵ<EFBFBD><C4B5><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5>ļ<EFBFBD>Ŀ¼<C4BF><C2BC> |
|
||||
| domain=<3D><><EFBFBD><EFBFBD> | <20><>Ϊ Cookie <20><><EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>Ĭ<EFBFBD><C4AC>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD> Cookie <20>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| Secure | <20><><EFBFBD><EFBFBD> HTTPS <20><>ȫͨ<C8AB><CDA8>ʱ<EFBFBD>Żᷢ<C5BB><E1B7A2> Cookie |
|
||||
| HttpOnly | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD>ʹ Cookie <20><><EFBFBD>ܱ<EFBFBD> JavaScript <20>ű<EFBFBD><C5B1><EFBFBD><EFBFBD><EFBFBD> |
|
||||
|
||||
**Session <20><> Cookie <20><><EFBFBD><EFBFBD>**
|
||||
|
||||
Session <20>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ֶΣ<D6B6>ÿ<EFBFBD><C3BF> Session <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>Ψһ<CEA8><D2BB>ʶ<EFBFBD><CAB6>Session ID<49><44><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> Session ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB>˷<EFBFBD><CBB7>͵<EFBFBD><CDB5><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD>ľͰ<C4BE><CDB0><EFBFBD><EFBFBD><EFBFBD> Set-Cookie <20>ֶΣ<D6B6><CEA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>Ϊ sid <20>ļ<EFBFBD>ֵ<EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>Ծ<EFBFBD><D4BE><EFBFBD> Session ID<49><44><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD>Ͱ<EFBFBD> Cookie <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><CDB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD> Session ID<49><44>HTTP <20><><EFBFBD><EFBFBD> Session <20><> Cookie <20><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ʽһ<CABD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>û<EFBFBD>״̬<D7B4>ģ<EFBFBD><C4A3><EFBFBD> Session <20><><EFBFBD>ڷ<EFBFBD><DAB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˣ<EFBFBD>Cookie <20><><EFBFBD>ڿͻ<DABF><CDBB>ˡ<EFBFBD>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Cookie <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD> URL <20><>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> URL <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> sid=xxx <20><>
|
||||
|
||||
**ʹ<><CAB9> Cookie ʵ<><CAB5><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD>д**
|
||||
|
||||
<EFBFBD><EFBFBD>վ<EFBFBD>ű<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD> Cookie <20>ж<EFBFBD>ȡ<EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬<EFBFBD>Ӷ<EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD>д<EFBFBD><D0B4>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>淽<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD>档
|
||||
|
||||
Cache-Control <20><><EFBFBD>ڿ<EFBFBD><DABF>ƻ<EFBFBD><C6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>
|
||||
|
||||
Cache-Control: no-cache <20><><EFBFBD><EFBFBD><EFBFBD>ֺ<EFBFBD><D6BA>壬<EFBFBD><E5A3AC><EFBFBD><EFBFBD><EFBFBD>ǿͻ<C7BF><CDBB><EFBFBD><EFBFBD><EFBFBD><F2BBBAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><CDB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>к<EFBFBD><D0BA>и<EFBFBD>ָ<EFBFBD><EFBFBD><EEA3AC>ʾ<EFBFBD>ͻ<EFBFBD><CDBB>˲<EFBFBD><CBB2><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><F2BBBAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><CDB5><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD>к<EFBFBD><D0BA>и<EFBFBD>ָ<EFBFBD><EFBFBD><EEA3AC>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܶ<EFBFBD><DCB6><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD>л<EFBFBD><D0BB>档
|
||||
|
||||
Expires <20>ֶο<D6B6><CEBF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڸ<EFBFBD>֪<EFBFBD><D6AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դʲôʱ<C3B4><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڡ<EFBFBD><DAA1><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2>ֶ<EFBFBD> Cache-Control <20><>ָ<EFBFBD><D6B8> max-age ָ<><D6B8>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2>ֶ<EFBFBD> Expires<65><73><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȴ<EFBFBD><C8B4><EFBFBD> max-age ָ<>
|
||||
|
||||
## <20>־<EFBFBD><D6BE><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼƬ<EFBFBD><EFBFBD> HTML ҳ<><D2B3>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> HTML ҳ<><D2B3><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼƬ<CDBC><C6AC>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> HTTP ͨ<>ž<EFBFBD>Ҫ<EFBFBD>Ͽ<EFBFBD>һ<EFBFBD><D2BB> TCP <20><><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD><EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD>ͶϿ<CDB6><CFBF>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܴ<EFBFBD><DCB4><EFBFBD>**<2A>־<EFBFBD><D6BE><EFBFBD><EFBFBD><EFBFBD>** ֻ<><D6BB>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> TCP <20><><EFBFBD>Ӿ<EFBFBD><D3BE>ܽ<EFBFBD><DCBD>ж<EFBFBD><D0B6><EFBFBD> HTTP ͨ<>š<EFBFBD>HTTP/1.1<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD>϶<EFBFBD><EFBFBD>dz־<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӡ<EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD>־<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫʹ<EFBFBD><EFBFBD> Connection <20>ײ<EFBFBD><D7B2>ֶν<D6B6><CEBD>й<EFBFBD><D0B9><EFBFBD><EFBFBD><EFBFBD>HTTP/1.1 <20><>ʼHTTP Ĭ<><C4AC><EFBFBD>dz־û<D6BE><C3BB><EFBFBD><EFBFBD>ӵģ<D3B5><C4A3><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>Ͽ<EFBFBD> TCP <20><><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD>Ҫ<EFBFBD>ɿͻ<C9BF><CDBB>˻<EFBFBD><CBBB>߷<EFBFBD><DFB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͽ<EFBFBD><CFBF><EFBFBD>ʹ<EFBFBD><CAB9> Connection: close <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>HTTP/1.1֮ǰĬ<EFBFBD><EFBFBD><EFBFBD>Ƿdz־û<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫά<EFBFBD>ֳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><EFBFBD><EFBFBD>Ҫʹ<EFBFBD><EFBFBD> Keep-Alive<76><65>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<EFBFBD><EFBFBD><EFBFBD>Ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD>ȴ<EFBFBD><EFBFBD><EFBFBD>Ӧ֮<EFBFBD><EFBFBD><EFBFBD>ٷ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
## <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>루Encoding<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>Ϊ<EFBFBD>˶<EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õı<EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>gzip<EFBFBD><EFBFBD>compress<EFBFBD><EFBFBD>deflate<EFBFBD><EFBFBD>identity<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> identity <20><>ʾ<EFBFBD><CABE>ִ<EFBFBD><D6B4>ѹ<EFBFBD><D1B9><EFBFBD>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD>
|
||||
|
||||
## <20>ֿ鴫<D6BF><E9B4AB>
|
||||
|
||||
<EFBFBD>ֿ鴫<EFBFBD>䣨Chunked Transfer Coding<6E><67><EFBFBD><EFBFBD><EFBFBD><EFBFBD><D4B0><EFBFBD><EFBFBD>ݷָ<DDB7><D6B8>ɶ<EFBFBD><C9B6>飬<EFBFBD><E9A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾҳ<CABE>档
|
||||
|
||||
## <20>ಿ<EFBFBD>ֶ<EFBFBD><D6B6><EFBFBD>
|
||||
|
||||
һ<EFBFBD>ݱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڿɺ<EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>ʵ<EFBFBD><EFBFBD>ͬʱ<EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD> boundary <20>ֶζ<D6B6><CEB6><EFBFBD><EFBFBD>ķָ<C4B7><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>зָ<D0B7><D6B8><EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2>ֶΡ<D6B6>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>磬<EFBFBD>ϴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ʽ<EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
## <20><>Χ<EFBFBD><CEA7><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>жϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD>Χ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ÿͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD>Dz<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD>Ӷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Range <20>ֶΣ<D6B6>Ȼ<EFBFBD><C8BB>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD>Χ<EFBFBD><CEA7><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Range : bytes = 5001-10000<30><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD><C9B9>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 206 Partial Content ״̬<D7B4><CCAC>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD>Э<EFBFBD><D0AD>
|
||||
|
||||
ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD>̷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD>滹<EFBFBD><EFBFBD>Ӣ<EFBFBD>Ľ<EFBFBD><EFBFBD>档
|
||||
|
||||
<EFBFBD>漰<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><EFBFBD>ֶΣ<EFBFBD>Accept<EFBFBD><EFBFBD>Accept-Charset<65><74>Accept-Encoding<6E><67>Accept-Language<67><65>Content-Language<67><65>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>һ̨<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͽ<EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD>ɶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## ͨ<><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܿͻ<EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD> URL<52><4C>
|
||||
|
||||
ʹ<EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҪĿ<EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>桢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־<EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ط<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ὣ HTTP ת<><D7AA>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD>Э<EFBFBD><D0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>ţ<EFBFBD><C5A3>Ӷ<EFBFBD><D3B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> HTTP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
ʹ<EFBFBD><EFBFBD> SSL <20>ȼ<EFBFBD><C8BC><EFBFBD><EFBFBD>ֶΣ<D6B6>Ϊ<EFBFBD>ͻ<EFBFBD><CDBB>˺ͷ<CBBA><CDB7><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD>佨<EFBFBD><E4BDA8>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>·<EFBFBD><C2B7>
|
||||
|
||||
|
||||
|
||||
# HTTPs
|
||||
|
||||
HTTP <20><><EFBFBD><EFBFBD><EFBFBD>°<EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD>⣺
|
||||
|
||||
1. ͨ<><CDA8>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD>ݿ<EFBFBD><DDBF>ܻᱻ<DCBB><E1B1BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
2. <20><><EFBFBD><EFBFBD>֤ͨ<D6A4>ŷ<EFBFBD><C5B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><DDA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>αװ<CEB1><D7B0>
|
||||
3. <20><EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD><C4B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>۸ġ<DBB8>
|
||||
|
||||
HTTPs <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD>飬<EFBFBD><E9A3AC><EFBFBD><EFBFBD> HTTP <20>Ⱥ<EFBFBD> SSL<53><4C>Secure Socket Layer<65><72>ͨ<EFBFBD>ţ<EFBFBD><C5A3><EFBFBD><EFBFBD><EFBFBD> SSL <20><> TCP ͨ<>š<EFBFBD>ͨ<EFBFBD><CDA8>ʹ<EFBFBD><CAB9> SSL<53><4C>HTTPs <20>ṩ<EFBFBD>˼<EFBFBD><CBBC>ܡ<EFBFBD><DCA1><EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ּ<EFBFBD><EFBFBD>ܷ<EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD>Գ<EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD>ܺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD>ܡ<EFBFBD><EFBFBD>Գ<EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD>ܵļ<EFBFBD><EFBFBD>ܺͽ<EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>ͬһ<EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD>ڼ<EFBFBD><EFBFBD>ܺͽ<EFBFBD><EFBFBD>ܣ<EFBFBD><EFBFBD>ֱ<EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD>˽<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˶<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ի<EFBFBD><EFBFBD>ã<EFBFBD>ͨ<EFBFBD>ŷ<EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ý<EFBFBD><EFBFBD>շ<EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ֮<EFBFBD>Ϳ<EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ù<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>շ<EFBFBD><EFBFBD>յ<EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݺ<EFBFBD>ʹ<EFBFBD><EFBFBD>˽<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD>ܡ<EFBFBD>
|
||||
|
||||
<EFBFBD>Գ<EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD>ܵ<EFBFBD>ȱ<EFBFBD>㣺<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD>ܵ<EFBFBD>ȱ<EFBFBD>㣺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>
|
||||
|
||||
HTTPs <20><><EFBFBD><EFBFBD> **<EFBFBD><EFBFBD><EFBFBD>ϵļ<EFBFBD><EFBFBD>ܻ<EFBFBD><EFBFBD><EFBFBD>**<2A><>ʹ<EFBFBD>ù<EFBFBD><C3B9><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><D4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>Գ<EFBFBD><D4B3><EFBFBD>Կ<EFBFBD><D4BF>֮<EFBFBD><D6AE>ʹ<EFBFBD>öԳ<C3B6><D4B3><EFBFBD>Կ<EFBFBD><D4BF><EFBFBD>ܽ<EFBFBD><DCBD><EFBFBD>ͨ<EFBFBD>š<EFBFBD><C5A1><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><D4BF><EFBFBD>Գ<EFBFBD><D4B3><EFBFBD>Կ<EFBFBD><D4BF>
|
||||
|
||||
|
||||
|
||||
## <20><>֤
|
||||
|
||||
ͨ<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD> **֤<><D6A4>** <20><><EFBFBD><EFBFBD>ͨ<EFBFBD>ŷ<EFBFBD><C5B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4>֤<EFBFBD><D6A4><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><D4BF><EFBFBD>ݣ<EFBFBD><DDA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><D4BF>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD>ͨ<EFBFBD>ŷ<EFBFBD><C5B7>ģ<EFBFBD><C4A3><EFBFBD>ô<EFBFBD>Ϳ<EFBFBD><CDBF><EFBFBD>ȷ<EFBFBD><C8B7>ͨ<EFBFBD>ŷ<EFBFBD><C5B7>ǿɿ<C7BF><C9BF>ġ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>CA<EFBFBD><EFBFBD>Certificate
|
||||
Authority<EFBFBD><EFBFBD><EFBFBD>䷢<EFBFBD>Ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ֤<EFBFBD>飬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD> CA <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> HTTPs ͨ<><CDA8>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD>鷢<EFBFBD><EFBFBD><CDB8>ͻ<EFBFBD><CDBB>ˣ<EFBFBD><CBA3>ͻ<EFBFBD><CDBB><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD>еĹ<D0B5><C4B9><EFBFBD><EFBFBD><EFBFBD>Կ֮<D4BF>Ϳ<F3A3ACBE><CDBF>Կ<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD>ܹ<EFBFBD><DCB9>̡<EFBFBD>
|
||||
|
||||
ʹ<EFBFBD><EFBFBD> OpenSSL <20><><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD>˶<EFBFBD><CBB6><EFBFBD><EFBFBD>Թ<EFBFBD><D4B9><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD><D3B6>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC>䷢<EFBFBD><E4B7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD>顣<EFBFBD><E9A1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڷ<EFBFBD><DAB7>ʸ÷<CAB8><C3B7><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD>Ӱ<EFBFBD>ȫ<EFBFBD>ԡ<EFBFBD><D4A1><EFBFBD><F2A1B0B8><EFBFBD>վ<EFBFBD>İ<EFBFBD>ȫ֤<C8AB><D6A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⡱<EFBFBD>Ⱦ<EFBFBD><C8BE><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>
|
||||
|
||||
<EFBFBD>ͻ<EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD>а<EFBFBD>װ<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>dz<EFBFBD><EFBFBD>߰<EFBFBD>ȫ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ʹ<EFBFBD>ÿͻ<EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD>飬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
SSL <20>ṩժҪ<D5AA><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD><EFBFBD>ԡ<EFBFBD>
|
||||
|
||||
673
notes/JVM.md
Normal file
673
notes/JVM.md
Normal file
@ -0,0 +1,673 @@
|
||||
<!-- GFM-TOC -->
|
||||
* [<EFBFBD>ڴ<EFBFBD>ģ<EFBFBD><EFBFBD>](#<23>ڴ<EFBFBD>ģ<EFBFBD><C4A3>)
|
||||
* [1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#1-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [2. Java <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ](#2-java-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ)
|
||||
* [3. <20><><EFBFBD>ط<EFBFBD><D8B7><EFBFBD>ջ](#3-<2D><><EFBFBD>ط<EFBFBD><D8B7><EFBFBD>ջ)
|
||||
* [4. Java <20><>](#4-java-<2D><>)
|
||||
* [5. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#5-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [6. <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#6-<2D><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [7. ֱ<><D6B1><EFBFBD>ڴ<EFBFBD>](#7-ֱ<><D6B1><EFBFBD>ڴ<EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>)
|
||||
* [1. <20>ж<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7>ɻ<EFBFBD><C9BB><EFBFBD>](#1-<2D>ж<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7>ɻ<EFBFBD><C9BB><EFBFBD>)
|
||||
* [1.1 <20><><EFBFBD>ü<EFBFBD><C3BC><EFBFBD>](#11-<2D><><EFBFBD>ü<EFBFBD><C3BC><EFBFBD>)
|
||||
* [1.2 <20>ɴ<EFBFBD><C9B4><EFBFBD>](#12-<2D>ɴ<EFBFBD><C9B4><EFBFBD>)
|
||||
* [1.3 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#13-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [1.3.1 ǿ<><C7BF><EFBFBD><EFBFBD>](#131-ǿ<><C7BF><EFBFBD><EFBFBD>)
|
||||
* [1.3.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#132-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [1.3.3 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#133-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [1.3.4 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#134-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [1.3 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD>](#13-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD>)
|
||||
* [1.4 finalize()](#14-finalize)
|
||||
* [2. <20><><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC>㷨](#2-<2D><><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC>㷨)
|
||||
* [2.1 <20><><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD><EFBFBD>㷨](#21-<2D><><EFBFBD><EFBFBD>---<2D><><EFBFBD><EFBFBD><EFBFBD>㷨)
|
||||
* [2.2 <20><><EFBFBD><EFBFBD><EFBFBD>㷨](#22-<2D><><EFBFBD><EFBFBD><EFBFBD>㷨)
|
||||
* [2.3 <20><><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD><EFBFBD>㷨](#23-<2D><><EFBFBD><EFBFBD>---<2D><><EFBFBD><EFBFBD><EFBFBD>㷨)
|
||||
* [2.4 <20>ִ<EFBFBD><D6B4>ռ<EFBFBD><D5BC>㷨](#24-<2D>ִ<EFBFBD><D6B4>ռ<EFBFBD><D5BC>㷨)
|
||||
* [3. <20><><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>](#3-<2D><><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>)
|
||||
* [3.1 Serial <20>ռ<EFBFBD><D5BC><EFBFBD>](#31-serial-<2D>ռ<EFBFBD><D5BC><EFBFBD>)
|
||||
* [3.2 ParNew <20>ռ<EFBFBD><D5BC><EFBFBD>](#32-parnew-<2D>ռ<EFBFBD><D5BC><EFBFBD>)
|
||||
* [3.3 Parallel Scavenge <20>ռ<EFBFBD><D5BC><EFBFBD>](#33-parallel-scavenge-<2D>ռ<EFBFBD><D5BC><EFBFBD>)
|
||||
* [3.4 Serial Old <20>ռ<EFBFBD><D5BC><EFBFBD>](#34-serial-old-<2D>ռ<EFBFBD><D5BC><EFBFBD>)
|
||||
* [3.5 Parallel Old <20>ռ<EFBFBD><D5BC><EFBFBD>](#35-parallel-old-<2D>ռ<EFBFBD><D5BC><EFBFBD>)
|
||||
* [3.6 CMS <20>ռ<EFBFBD><D5BC><EFBFBD>](#36-cms-<2D>ռ<EFBFBD><D5BC><EFBFBD>)
|
||||
* [3.7 G1 <20>ռ<EFBFBD><D5BC><EFBFBD>](#37-g1-<2D>ռ<EFBFBD><D5BC><EFBFBD>)
|
||||
* [3.8 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>ıȽ<C4B1>](#38-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>ıȽ<C4B1>)
|
||||
* [4. <20>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ղ<EFBFBD><D5B2><EFBFBD>](#4-<2D>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ղ<EFBFBD><D5B2><EFBFBD>)
|
||||
* [4.1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Eden <20><><EFBFBD><EFBFBD>](#41-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-eden-<2D><><EFBFBD><EFBFBD>)
|
||||
* [4.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#42-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [4.3 <20><><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#43-<2D><><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [4.4 <20><>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>](#44-<2D><>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>)
|
||||
* [4.5 <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>䵣<EFBFBD><E4B5A3>](#45-<2D>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>䵣<EFBFBD><E4B5A3>)
|
||||
* [4.6 Full GC <20>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#46-full-gc-<2D>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [4.6.1 <20><><EFBFBD><EFBFBD> System.gc()](#461-<2D><><EFBFBD><EFBFBD>-systemgc)
|
||||
* [4.6.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ䲻<D5BC><E4B2BB>](#462-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ䲻<D5BC><E4B2BB>)
|
||||
* [4.6.3 <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>䵣<EFBFBD><E4B5A3>ʧ<EFBFBD><CAA7>](#463-<2D>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>䵣<EFBFBD><E4B5A3>ʧ<EFBFBD><CAA7>)
|
||||
* [4.6.4 JDK 1.7 <20><><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><C3B4>ռ䲻<D5BC><E4B2BB>](#464-jdk-17-<2D><><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><C3B4>ռ䲻<D5BC><E4B2BB>)
|
||||
* [4.6.5 Concurrent Mode Failure](#465-concurrent-mode-failure)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><D8BB><EFBFBD>)
|
||||
* [1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#1-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [2. <20><><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ʱ<EFBFBD><CAB1>](#2-<2D><><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ʱ<EFBFBD><CAB1>)
|
||||
* [3. <20><><EFBFBD><EFBFBD><EFBFBD>ع<EFBFBD><D8B9><EFBFBD>](#3-<2D><><EFBFBD><EFBFBD><EFBFBD>ع<EFBFBD><D8B9><EFBFBD>)
|
||||
* [3.1 <20><><EFBFBD><EFBFBD>](#31-<2D><><EFBFBD><EFBFBD>)
|
||||
* [3.2 <20><>֤](#32-<2D><>֤)
|
||||
* [3.3 <><D7BC>](#33-<><D7BC>)
|
||||
* [3.4 <20><><EFBFBD><EFBFBD>](#34-<2D><><EFBFBD><EFBFBD>)
|
||||
* [3.5 <20><>ʼ<EFBFBD><CABC>](#35-<2D><>ʼ<EFBFBD><CABC>)
|
||||
* [4. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#4-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [4.1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#41-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [4.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#42-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [4.3 ˫<><CBAB>ί<EFBFBD><CEAF>ģ<EFBFBD><C4A3>](#43-˫<><CBAB>ί<EFBFBD><CEAF>ģ<EFBFBD><C4A3>)
|
||||
* [JVM <20><><EFBFBD><EFBFBD>](#jvm-<2D><><EFBFBD><EFBFBD>)
|
||||
* [GC <20>Ż<EFBFBD><C5BB><EFBFBD><EFBFBD><EFBFBD>](#gc-<2D>Ż<EFBFBD><C5BB><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [GC <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#gc-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
<!-- GFM-TOC -->
|
||||
|
||||
# <20>ڴ<EFBFBD>ģ<EFBFBD><C4A3>
|
||||
|
||||
|
||||
|
||||
ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>߳<EFBFBD>˽<EFBFBD>еģ<EFBFBD><EFBFBD><EFBFBD>ɫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>̹߳<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD>
|
||||
|
||||
## 1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>¼<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>е<EFBFBD><EFBFBD><EFBFBD> Native <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>գ<EFBFBD><D5A3><EFBFBD>
|
||||
|
||||
## 2. Java <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ
|
||||
|
||||
ÿ<EFBFBD><EFBFBD> Java <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>е<EFBFBD>ͬʱ<CDAC>ᴴ<EFBFBD><E1B4B4>һ<EFBFBD><D2BB>ջ֡<D5BB><D6A1><EFBFBD>ڴ洢<DAB4>ֲ<EFBFBD><D6B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD>̬<EFBFBD><CCAC><EFBFBD>ӡ<EFBFBD><D3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD>Ϣ<EFBFBD><CFA2>ÿһ<C3BF><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD>ֱ<EFBFBD><D6B1>ִ<EFBFBD><D6B4><EFBFBD><EFBFBD><EFBFBD>ɵĹ<C9B5><C4B9>̣<EFBFBD><CCA3>Ͷ<EFBFBD>Ӧ<EFBFBD><D3A6>һ<EFBFBD><D2BB>ջ֡<D5BB><D6A1> Java <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD>ջ<EFBFBD>ͳ<EFBFBD>ջ<EFBFBD>Ĺ<EFBFBD><C4B9>̡<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>쳣<EFBFBD><EFBFBD>
|
||||
|
||||
1. <20><><EFBFBD>߳<EFBFBD><DFB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD>ȳ<EFBFBD><C8B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD>׳<EFBFBD> StackOverflowError <20>쳣<EFBFBD><ECB3A3>
|
||||
2. ջ<><D5BB><EFBFBD>ж<EFBFBD>̬<EFBFBD><CCAC>չʱ<D5B9><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><DEB7><EFBFBD><EFBFBD>뵼<EFBFBD>㹻<EFBFBD>ڴ棬<DAB4><E6A3AC><EFBFBD>׳<EFBFBD> OutOfMemoryError <20>쳣<EFBFBD><ECB3A3>
|
||||
|
||||
## 3. <20><><EFBFBD>ط<EFBFBD><D8B7><EFBFBD>ջ
|
||||
|
||||
<EFBFBD><EFBFBD> Java <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD>ƣ<EFBFBD><C6A3><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><EFBFBD>DZ<EFBFBD><C7B1>ط<EFBFBD><D8B7><EFBFBD>ջΪ<D5BB><CEAA><EFBFBD>ط<EFBFBD><D8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## 4. Java <20><>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ档
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"GC <20><> "<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Dz<EFBFBD><C7B2>÷ִ<C3B7><D6B4>ռ<EFBFBD><D5BC>㷨<EFBFBD><E3B7A8>Java <20>ѻ<EFBFBD><D1BB><EFBFBD><EFBFBD>Էֳɣ<D6B3><C9A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Էֳ<D4B7> Eden <20>ռ䡢From Survivor <20>ռ䡢To Survivor <20>ռ<EFBFBD><D5BC>ȣ<EFBFBD><C8A3><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ棬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD> -Xmx <20><> -Xms <20><><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD>̬<EFBFBD><CCAC>չ<EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̬<EFBFBD><CCAC>չʧ<D5B9>ܻ<EFBFBD><DCBB>׳<EFBFBD> OutOfMemoryError <20>쳣<EFBFBD><ECB3A3>
|
||||
|
||||
## 5. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> Java <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ棬<DAB4><E6A3AC><EFBFBD>ҿ<EFBFBD><D2BF>Զ<EFBFBD>̬<EFBFBD><CCAC>չ<EFBFBD><D5B9><EFBFBD><EFBFBD>̬<EFBFBD><CCAC>չʧ<D5B9><CAA7>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>׳<EFBFBD> OutOfMemoryError <20>쳣<EFBFBD><ECB3A3>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><EFBFBD><EFBFBD>ҪĿ<EFBFBD><EFBFBD><EFBFBD>ǶԳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>صĻ<EFBFBD><EFBFBD>պͶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>أ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>Ƚ<EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>֣<EFBFBD>HotSpot <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><C3B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ա<EFBFBD>
|
||||
|
||||
## 6. <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>֡<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>غ<EFBFBD><EFBFBD><EFBFBD>Class <20>ļ<EFBFBD><C4BC>еij<D0B5><C4B3><EFBFBD><EFBFBD>أ<EFBFBD><D8A3><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4>ű<EFBFBD><C5B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɵĸ<C9B5><C4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><C3A3>ͻᱻ<CDBB>ŵ<EFBFBD><C5B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ù<EFBFBD> String <20><><EFBFBD><EFBFBD> intern() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>µij<C2B5><C4B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## 7. ֱ<><D6B1><EFBFBD>ڴ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> JDK 1.4 <20><><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD> NIO <20>࣬<EFBFBD><E0A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>Channel<65><6C><EFBFBD>뻺<EFBFBD><EBBBBA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Buffer<65><72><EFBFBD><EFBFBD> I/O <20><>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> Native <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӷ<EFBFBD><D3B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ棬Ȼ<E6A3AC><C8BB>ͨ<EFBFBD><CDA8>һ<EFBFBD><D2BB><EFBFBD>洢<EFBFBD><E6B4A2> Java <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> DirectByteBuffer <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ý<EFBFBD><C3BD>в<EFBFBD><D0B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һЩ<D2BB><D0A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܣ<EFBFBD><DCA3><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Java <20>Ѻ<EFBFBD> Native <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD><D8B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD>ͱ<EFBFBD><EFBFBD>ط<EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>˽<EFBFBD>еģ<EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̵߳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڣ<EFBFBD><EFBFBD>߳̽<EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˲<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ա<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Java <20>Ѻͷ<D1BA><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>
|
||||
|
||||
## 1. <20>ж<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7>ɻ<EFBFBD><C9BB><EFBFBD>
|
||||
|
||||
### 1.1 <20><><EFBFBD>ü<EFBFBD><C3BC><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1<><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧЧʱ<D0A7><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1<><31>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD>Ϊ 0 <20>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD><EFBFBD>ա<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⣬<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD>Ϊ 0<><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD> GC <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><DEB7><EFBFBD><EFBFBD>ա<EFBFBD>
|
||||
|
||||
```java
|
||||
objA.instance = objB;
|
||||
objB.instance = objA;
|
||||
```
|
||||
|
||||
### 1.2 <20>ɴ<EFBFBD><C9B4><EFBFBD>
|
||||
|
||||
ͨ<EFBFBD><EFBFBD> GC Roots <20><>Ϊ<EFBFBD><CEAA>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD>ﵽ<EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƕ<EFBFBD><C7B6>ǿ<EFBFBD><C7BF>õģ<C3B5><C4A3><EFBFBD><EFBFBD>ɴ<EFBFBD><C9B4>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD><EFBFBD>ա<EFBFBD>
|
||||
|
||||
GC Roots һ<><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>
|
||||
|
||||
1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD>õĶ<C3B5><C4B6><EFBFBD>
|
||||
2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ྲ̬<E0BEB2><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õĶ<C3B5><C4B6><EFBFBD>
|
||||
3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еij<D0B5><C4B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õĶ<C3B5><C4B6><EFBFBD>
|
||||
4. <20><><EFBFBD>ط<EFBFBD><D8B7><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD>õĶ<C3B5><C4B6><EFBFBD>
|
||||
|
||||
### 1.3 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD>ж϶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD>ɴ<EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD>ж϶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>ɴ<EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>롰<EFBFBD><EFBFBD><EFBFBD>á<EFBFBD><EFBFBD>йء<EFBFBD>
|
||||
|
||||
#### 1.3.1 ǿ<><C7BF><EFBFBD><EFBFBD>
|
||||
|
||||
ֻҪǿ<EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD>ڣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õĶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
Object obj = new Object();
|
||||
```
|
||||
|
||||
#### 1.3.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
<EFBFBD>DZ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮ǰ<EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD>ա<EFBFBD>
|
||||
|
||||
```java
|
||||
Object obj = new Object();
|
||||
SoftReference<Object> sf = new SoftReference<Object>(obj);
|
||||
obj = null;
|
||||
sf.get();
|
||||
```
|
||||
|
||||
sf <20>Ƕ<EFBFBD> obj <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>ͨ<EFBFBD><CDA8> sf.get() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><F3B1BBB1><EFBFBD>Ϊ<EFBFBD><CEAA>Ҫ<EFBFBD><D2AA><EFBFBD>յĶ<D5B5><C4B6><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD> null<6C><6C>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>û<EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>㹻<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӷ<EFBFBD>æ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶȣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ治<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD>ɾ<EFBFBD><EFBFBD><EFBFBD>ⲿ<EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD>Щ<EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>
|
||||
|
||||
|
||||
#### 1.3.3 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>浽<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>۵<EFBFBD>ǰ<EFBFBD>ڴ<EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>㹻<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᱻ<EFBFBD><EFBFBD><EFBFBD>ա<EFBFBD>
|
||||
|
||||
```java
|
||||
Object obj = new Object();
|
||||
WeakReference<Object> wf = new WeakReference<Object>(obj);
|
||||
obj = null;
|
||||
wf.get();
|
||||
wf.isEnQueued();
|
||||
```
|
||||
|
||||
#### 1.3.4 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD>ֳ<EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>Ӱ<EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õĴ<EFBFBD><EFBFBD>ڣ<EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>乹<EFBFBD><EFBFBD>Ӱ<EFBFBD>죬Ҳ<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ù<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ΨһĿ<EFBFBD>ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>յ<EFBFBD>һ<EFBFBD><EFBFBD>ϵͳ֪ͨ<EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
Object obj = new Object();
|
||||
PhantomReference<Object> pf = new PhantomReference<Object>(obj);
|
||||
obj=null;
|
||||
pf.get();
|
||||
pf.isEnQueued();
|
||||
```
|
||||
|
||||
### 1.3 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD>
|
||||
|
||||
<EFBFBD>ڷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ǶԳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>صĻ<EFBFBD><EFBFBD>պͶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ء<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>صĻ<EFBFBD><EFBFBD>պͶ<EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ơ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܶ࣬<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ᱻж<EFBFBD>أ<EFBFBD>
|
||||
|
||||
1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>գ<EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD> Java <20><><EFBFBD>в<EFBFBD><D0B2><EFBFBD><EFBFBD>ڸ<EFBFBD><DAB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>
|
||||
2. <20><><EFBFBD>ظ<EFBFBD><D8B8><EFBFBD><EFBFBD><EFBFBD> ClassLoader <20>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ա<EFBFBD>
|
||||
3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6> java.lang.Class <20><><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD>κεط<CEB5><D8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><DEB7><EFBFBD><EFBFBD>κεط<CEB5>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʸ<EFBFBD><CAB8><EFBFBD><E0B7BD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD> -Xnoclassgc <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ء<EFBFBD>
|
||||
|
||||
<EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>÷<EFBFBD><EFBFBD>䡢<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>CGLib <20><> ByteCode <20><><EFBFBD>ܡ<EFBFBD><DCA1><EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD> JSP <20>Լ<EFBFBD> OSGo <20><><EFBFBD><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD> ClassLoader <20>ij<EFBFBD><C4B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߱<EFBFBD><DFB1><EFBFBD>ж<EFBFBD>ع<EFBFBD><D8B9>ܣ<EFBFBD><DCA3>Ա<EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 1.4 finalize()
|
||||
|
||||
<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD>Ҫִ<EFBFBD><EFBFBD> finalize() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><C3B4><EFBFBD>п<EFBFBD><D0BF>ܿ<EFBFBD><DCBF><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD>ڸ÷<DAB8><C3B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>±<EFBFBD><C2B1><EFBFBD><EFBFBD>ã<EFBFBD><C3A3>Ӷ<EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD>Ծȡ<D4BE>
|
||||
|
||||
finalize() <20><><EFBFBD><EFBFBD> C++ <20><><EFBFBD>鹹<EFBFBD><E9B9B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ر<EFBFBD><D8B1>ⲿ<EFBFBD><E2B2BF>Դ<EFBFBD>ȹ<EFBFBD><C8B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> try-finally <20>ȷ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8>ã<EFBFBD><C3A3><EFBFBD><EFBFBD>Ҹ÷<D2B8><C3B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>۸߰<DBB8><DFB0><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><DEB7><EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD><C4B5><EFBFBD>˳<EFBFBD><CBB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ò<EFBFBD>Ҫʹ<D2AA>á<EFBFBD>
|
||||
|
||||
## 2. <20><><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC>㷨
|
||||
|
||||
### 2.1 <20><><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD><EFBFBD>㷨
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>յĶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><EFBFBD>ǣ<EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>㣺
|
||||
|
||||
1. <20><><EFBFBD>Ǻ<EFBFBD><C7BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD>ʶ<EFBFBD><CAB6><EFBFBD><EFBFBD><EFBFBD>
|
||||
2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƭ
|
||||
|
||||
֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD><EFBFBD>ǻ<EFBFBD><EFBFBD>ڸ<EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD><EFBFBD>иĽ<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 2.2 <20><><EFBFBD><EFBFBD><EFBFBD>㷨
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ڴ滮<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>飬ÿ<EFBFBD><EFBFBD>ֻʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>飬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˾ͽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>棬Ȼ<EFBFBD><EFBFBD><EFBFBD>ٰ<EFBFBD>ʹ<EFBFBD>ù<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>롣
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Dz<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǽ<EFBFBD><EFBFBD>ڴ滮<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>飬<EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD>Ϊһ<EFBFBD><EFBFBD><EFBFBD>ϴ<EFBFBD><EFBFBD><EFBFBD> Eden <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1> Survior <20>ռ䣬ÿ<E4A3AC><C3BF>ʹ<EFBFBD><CAB9> Eden <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> Survivor<6F><72><EFBFBD>ڻ<EFBFBD><DABB><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD> Eden <20><> Survivor <20>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŵĶ<C5B5><C4B6><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>Ը<EFBFBD><D4B8>Ƶ<EFBFBD><C6B5><EFBFBD>һ<EFBFBD><D2BB> Survivor <20>ռ<EFBFBD><D5BC>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Eden <20><> Survivor<6F><72>HotSpot <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Eden <20><> Survivor <20>Ĵ<EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD>Ĭ<EFBFBD><C4AC>Ϊ 8:1<><31><EFBFBD><EFBFBD>֤<EFBFBD><D6A4><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʴﵽ 90 %<25><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD>ж<EFBFBD><D0B6><EFBFBD> 10% <20>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EEA3AC>ôһ<C3B4><D2BB> Survivor <20>ռ<EFBFBD><D5BC>Ͳ<EFBFBD><CDB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˣ<EFBFBD><CBA3><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>з<EFBFBD><D0B7>䵣<EFBFBD><E4B5A3><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>ǽ<EFBFBD><C7BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀռ䡣
|
||||
|
||||
### 2.3 <20><><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD><EFBFBD>㷨
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD>ֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˱߽<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ档
|
||||
|
||||
### 2.4 <20>ִ<EFBFBD><D6B4>ռ<EFBFBD><D5BC>㷨
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷ִ<EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܵļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڽ<EFBFBD><EFBFBD>ڴ滮<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD>飬<EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD>
|
||||
|
||||
һ<EFBFBD>㽫 Java <20>ѷ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
|
||||
2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD> <20>㷨<EFBFBD><E3B7A8>
|
||||
|
||||
## 3. <20><><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> HotSpot <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD> 7 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߱<EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>á<EFBFBD>
|
||||
|
||||
### 3.1 Serial <20>ռ<EFBFBD><D5BC><EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ǵ<EFBFBD><EFBFBD>̵߳<EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ζ<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>߳̽<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̣߳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵȴ<EFBFBD>ʱ<EFBFBD>䡣
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD><EFBFBD>Ǽ<EFBFBD>Ч<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD> CPU <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><CBB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD>߳̽<DFB3><CCBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD>ߵĵ<DFB5><C4B5>߳<EFBFBD><DFB3>ռ<EFBFBD>Ч<EFBFBD>ʡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> Client Ӧ<>ó<EFBFBD><C3B3><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>˵<EFBFBD><CBB5><EFBFBD><EFBFBD><EFBFBD>ܴ<DCB4><F3A3ACB8>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>ʮ<EFBFBD><CAAE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><D7B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><CDA3>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><D4BF><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>ٶ<EFBFBD><D9B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڣ<EFBFBD>ֻҪ<D6BB><D2AA><EFBFBD><EFBFBD>̫Ƶ<CCAB><C6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><CDA3><EFBFBD>ǿ<EFBFBD><C7BF>Խ<EFBFBD><D4BD>ܵġ<DCB5>
|
||||
|
||||
### 3.2 ParNew <20>ռ<EFBFBD><D5BC><EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> Serial <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6>̰߳汾<CCB0><E6B1BE>
|
||||
|
||||
<EFBFBD><EFBFBD> Server ģʽ<C4A3>µ<EFBFBD><C2B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><D1A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD><EFBFBD>⣬<EFBFBD><E2A3AC>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD> Serial <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CMS <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϲ<EFBFBD><CFB9><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
Ĭ<EFBFBD>Ͽ<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CPU <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> -XX:ParallelGCThreads <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD><DFB3><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 3.3 Parallel Scavenge <20>ռ<EFBFBD><D5BC><EFBFBD>
|
||||
|
||||
<EFBFBD>Dz<EFBFBD><EFBFBD>еĶ<EFBFBD><EFBFBD>߳<EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ע<EFBFBD><EFBFBD><EFBFBD>Ǿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>ʱ<EFBFBD>û<EFBFBD><EFBFBD>̵߳<EFBFBD>ͣ<EFBFBD><EFBFBD>ʱ<EFBFBD>䣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><EFBFBD><EFBFBD>Ǵﵽһ<EFBFBD><EFBFBD><EFBFBD>ɿ<EFBFBD><EFBFBD>Ƶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ CPU <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>ռ<EFBFBD><D5BC>ʱ<EFBFBD><CAB1><EFBFBD>ı<EFBFBD>ֵ<EFBFBD><D6B5>
|
||||
|
||||
ͣ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>Խ<EFBFBD>̾<EFBFBD>Խ<EFBFBD>ʺ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ٶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD>顣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ը<EFBFBD>Ч<EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CPU ʱ<>䣬<EFBFBD><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɳ<EFBFBD><C9B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ʺ<EFBFBD><CABA>ں<EFBFBD>̨<EFBFBD><CCA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ̫<D2AA>ཻ<EFBFBD><E0BDBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD>ṩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ھ<EFBFBD>ȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><EFBFBD>ǿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>ͣ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD> -XX:MaxGCPauseMillis <20><><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1> -XX:GCTimeRatio <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵΪ<D6B5><CEAA><EFBFBD><EFBFBD> 0 <20><>С<EFBFBD><D0A1> 100 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><CDA3>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ձ<EFBFBD><D5B1><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>½<EFBFBD><C2BD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> -XX:+UseAdaptiveSizePolicy<63><79><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ز<EFBFBD><D8B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><F2BFAAB2><EFBFBD><EFBFBD>Ͳ<F3A3ACBE><CDB2><EFBFBD>Ҫ<EFBFBD>ֹ<EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD>С<EFBFBD><D0A1>-Xmn<6D><6E><EFBFBD><EFBFBD>Eden <20><> Survivor <20><><EFBFBD>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD>-XX:SurvivorRatio<69><6F><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䣨-XX:PretenureSizeThreshold<6C><64><EFBFBD><EFBFBD>ϸ<EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD>ˣ<EFBFBD><CBA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD>ǰϵͳ<CFB5><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>ܼ<EFBFBD><DCBC><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD><D0A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD><E1B9A9><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ͣ<EFBFBD><CDA3>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ʽ<EFBFBD><CABD>Ϊ GC <20><><EFBFBD><EFBFBD>Ӧ<EFBFBD>ĵ<EFBFBD><C4B5>ڲ<EFBFBD><DAB2>ԣ<EFBFBD>GC Ergonomics<63><73><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ParNew <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 3.4 Serial Old <20>ռ<EFBFBD><D5BC><EFBFBD>
|
||||
|
||||
|
||||
|
||||
Serial Old <20><> Serial <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>汾<EFBFBD><E6B1BE>Ҳ<EFBFBD>Ǹ<EFBFBD> Client ģʽ<C4A3>µ<EFBFBD><C2B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>á<EFBFBD><C3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Server ģʽ<C4A3>£<EFBFBD><C2A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>;<EFBFBD><CDBE>
|
||||
|
||||
1. <20><> JDK 1.5 <20>Լ<EFBFBD>֮ǰ<D6AE>汾<EFBFBD><E6B1BE>Parallel Old <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Parallel Scavenge <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>á<EFBFBD>
|
||||
2. <20><>Ϊ CMS <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>ĺ<EFBFBD><C4BA><EFBFBD>Ԥ<EFBFBD><D4A4><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD> Concurrent Mode Failure ʱʹ<CAB1>á<EFBFBD>
|
||||
|
||||
### 3.5 Parallel Old <20>ռ<EFBFBD><D5BC><EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD> Parallel Scavenge <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>汾<EFBFBD><E6B1BE>
|
||||
|
||||
<EFBFBD><EFBFBD>ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD> CPU <20><>Դ<EFBFBD><D4B4><EFBFBD>еij<D0B5><C4B3>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȿ<EFBFBD><C8BF><EFBFBD> Parallel Scavenge <20><> Parallel Old <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 3.6 CMS <20>ռ<EFBFBD><D5BC><EFBFBD>
|
||||
|
||||
|
||||
|
||||
CMS<EFBFBD><EFBFBD>Concurrent Mark Sweep<65><70><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Mark Sweep <20><><EFBFBD><EFBFBD>֪<EFBFBD><D6AA><EFBFBD><EFBFBD><EFBFBD>ǻ<EFBFBD><C7BB><EFBFBD> <20><><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD> <20>㷨ʵ<E3B7A8>ֵġ<D6B5>
|
||||
|
||||
<EFBFBD>ص㣺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>١<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>̣<EFBFBD>
|
||||
|
||||
1. <20><>ʼ<EFBFBD><CABC><EFBFBD>ǣ<EFBFBD><C7A3><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>DZ<EFBFBD><C7B1><EFBFBD>һ<EFBFBD><D2BB> GC Roots <20><>ֱ<EFBFBD>ӹ<EFBFBD><D3B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶȺܿ죬<DCBF><ECA3AC>Ҫͣ<D2AA>١<EFBFBD>
|
||||
2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD><C7A3><EFBFBD><EFBFBD><EFBFBD> GC Roots Tracing <20>Ĺ<EFBFBD><C4B9>̣<EFBFBD><CCA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>չ<EFBFBD><D5B9><EFBFBD><EFBFBD>к<EFBFBD>ʱ<EFBFBD><EFBFBD><EEB3A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫͣ<D2AA>١<EFBFBD>
|
||||
3. <20><><EFBFBD>±<EFBFBD><C2B1>ǣ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ<EFBFBD><DABC><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>±<EFBFBD><C2B1>Dz<EFBFBD><C7B2><EFBFBD><EFBFBD>䶯<EFBFBD><E4B6AF><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD>ı<EFBFBD><C4B1>Ǽ<EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD>Ҫͣ<D2AA>١<EFBFBD>
|
||||
4. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫͣ<D2AA>١<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>к<EFBFBD>ʱ<EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǺͲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>̶߳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD>߳<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>١<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȱ<EFBFBD>㣺
|
||||
|
||||
1. <20><> CPU <20><>Դ<EFBFBD><D4B4><EFBFBD>С<EFBFBD>CMS Ĭ<><C4AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD>߳<EFBFBD><DFB3><EFBFBD><EFBFBD><EFBFBD> (CPU <20><><EFBFBD><EFBFBD> + 3) / 4<><34><EFBFBD><EFBFBD> CPU <20><><EFBFBD><EFBFBD> 4 <20><>ʱ<EFBFBD><CAB1>CMS <20><><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӱ<EFBFBD><D3B0><EFBFBD>Ϳ<EFBFBD><CDBF>ܱ<EFBFBD><DCB1>úܴ<C3BA><DCB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CPU <20><><EFBFBD>ؾͱȽϴ<CFB4>Ҫ<EFBFBD>ֳ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȥִ<C8A5><D6B4><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>̣߳<DFB3><CCA3>Ϳ<EFBFBD><CDBF>ܵ<EFBFBD><DCB5><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4><EFBFBD>ٶȺ<D9B6>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 50%<25><><EFBFBD><EFBFBD>ʵҲ<CAB5><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><DEB7><EFBFBD><EFBFBD>ܡ<EFBFBD><DCA1><EFBFBD><EFBFBD>ҵ<EFBFBD>ͣ<EFBFBD><CDA3>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>۵ģ<DBB5><C4A3><EFBFBD><EFBFBD><EFBFBD> CPU <20><><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>͡<EFBFBD>
|
||||
|
||||
2. <20><EFBFBD><DEB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><D7B6>û<EFBFBD><C3BB>̻߳<DFB3><CCBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD><C5A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD><C2B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD><DAB1>ǹ<EFBFBD><C7B9><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>CMS <20><EFBFBD><DEB7>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> GC ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͱ<EFBFBD><CDB1><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><D7B6>û<EFBFBD><C3BB>̻߳<DFB3><CCBB><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>У<EFBFBD><D0A3><EFBFBD>Ҳ<EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD>ҪԤ<D2AA><D4A4><EFBFBD><EFBFBD><EFBFBD>㹻<EFBFBD><E3B9BB><EFBFBD>ڴ<EFBFBD><DAB4>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>û<EFBFBD><C3BB>߳<EFBFBD>ʹ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD><C8B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٽ<EFBFBD><D9BD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD>ҪԤ<D2AA><D4A4>һ<EFBFBD><D2BB><EFBFBD>ֿռ<D6BF><D5BC>ṩ<EFBFBD><E1B9A9><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>ʱ<EFBFBD>ij<EFBFBD><C4B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>á<EFBFBD><C3A1><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> -XX:CMSInitiatingOccupancyFraction <20><>ֵ<EFBFBD><D6B5><EFBFBD>ı䴥<C4B1><E4B4A5><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>ռ<EFBFBD>ðٷֱȣ<D6B1>JDK 1.5 Ĭ<><C4AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¸<EFBFBD>ֵΪ 68<36><38>Ҳ<EFBFBD><D2B2><EFBFBD>ǵ<EFBFBD><C7B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD> 68% <20>Ŀռ<C4BF>֮<EFBFBD><D6AE><EFBFBD>ᴥ<EFBFBD><E1B4A5><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD>õ<EFBFBD>̫<EFBFBD>ߣ<EFBFBD><DFA3><EFBFBD><EFBFBD>¸<EFBFBD><C2B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><DEB7><EFBFBD><EFBFBD>棬<EFBFBD><E6A3AC>ô<EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD> Concurrent Mode Failure<72><65><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԥ<EFBFBD><D4A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD> Serial Old <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>½<EFBFBD><C2BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>
|
||||
|
||||
3. <20><><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><E3B7A8><EFBFBD>µĿռ<C4BF><D5BC><EFBFBD>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܴ<EFBFBD><DCB4>鷳<EFBFBD><E9B7B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>ʣ<EFBFBD>࣬<EFBFBD><E0A3AC><EFBFBD><EFBFBD><DEB7>ҵ<EFBFBD><D2B5>㹻<EFBFBD><E3B9BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䵱ǰ<E4B5B1><C7B0><EFBFBD><EFBFBD><F3A3ACB2>ò<EFBFBD><C3B2><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> Full GC<47><43>
|
||||
|
||||
### 3.7 G1 <20>ռ<EFBFBD><D5BC><EFBFBD>
|
||||
|
||||
|
||||
|
||||
G1<EFBFBD><EFBFBD>Garbage-First<73><74><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>ǵ<EFBFBD><C7B5><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>չ<EFBFBD><D5B9>ǰ<EFBFBD>صijɹ<C4B3>֮һ<D6AE><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD>HotSpot <20><><EFBFBD><EFBFBD><EFBFBD>ŶӸ<C5B6><D3B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD>ǣ<EFBFBD><C7A3>ڱȽϳ<C8BD><CFB3>ڵģ<DAB5>δ<EFBFBD><CEB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>滻<EFBFBD><E6BBBB> JDK 1.5 <20>з<EFBFBD><D0B7><EFBFBD><EFBFBD><EFBFBD> CMS <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD>߱<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص㣺
|
||||
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD>벢<EFBFBD><EBB2A2><EFBFBD><EFBFBD><EFBFBD>ܳ<EFBFBD><DCB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD> CPU <20><><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD>Ӳ<EFBFBD><D3B2><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD>ʹ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD> CPU <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><CDA3>ʱ<EFBFBD>䣻
|
||||
- <20>ִ<EFBFBD><D6B4>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͼ<EFBFBD><CFBE>ܶ<EFBFBD><DCB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> GC <20>ѣ<EFBFBD><D1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD>ò<EFBFBD>ͬ<EFBFBD><CDAC>ʽȥ<CABD><C8A5><EFBFBD><EFBFBD><EFBFBD>´<EFBFBD><C2B4><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѵ<EFBFBD><D1B4><EFBFBD>һ<EFBFBD><D2BB>ʱ<EFBFBD>䡢<EFBFBD><E4A1A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> GC <20>ľɶ<C4BE><C9B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD>õ<EFBFBD><C3B5>ռ<EFBFBD>Ч<EFBFBD><D0A7><EFBFBD><EFBFBD>
|
||||
- <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǻ<EFBFBD><C7BB>ڡ<EFBFBD><DAA1><EFBFBD><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨ʵ<E3B7A8>ֵ<EFBFBD><D6B5>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӿֲ<D3BE><D6B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Region ֮<>䣩<EFBFBD><E4A3A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǻ<EFBFBD><C7BB>ڡ<EFBFBD><DAA1><EFBFBD><EFBFBD>ơ<EFBFBD><C6A1>㷨ʵ<E3B7A8>ֵģ<D6B5><C4A3><EFBFBD><EFBFBD><EFBFBD>ζ<EFBFBD><CEB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ䲻<DABC><E4B2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4>ռ<EFBFBD><D5BC><EFBFBD>Ƭ<EFBFBD><C6AC>
|
||||
- <20><>Ԥ<EFBFBD><D4A4><EFBFBD><EFBFBD>ͣ<EFBFBD>٣<EFBFBD><D9A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CMS <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><C6A3><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><CDA3>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD> G1 <20><> CMS <20><>ͬ<EFBFBD>Ĺ<EFBFBD>ע<EFBFBD>㣬<EFBFBD><E3A3AC> G1 <20><><EFBFBD>˽<EFBFBD><CBBD><EFBFBD>ͣ<EFBFBD><CDA3><EFBFBD>⣬<EFBFBD><E2A3AC><EFBFBD>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD>Ԥ<EFBFBD><D4A4><EFBFBD><EFBFBD>ͣ<EFBFBD><CDA3>ʱ<EFBFBD><CAB1>ģ<EFBFBD>ͣ<EFBFBD><CDA3><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷָ<C8B7><D6B8><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ M <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>Ƭ<EFBFBD><C6AC><EFBFBD>ڣ<EFBFBD><DAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> GC <20>ϵ<EFBFBD>ʱ<EFBFBD>䲻<EFBFBD>ó<EFBFBD><C3B3><EFBFBD> N <20><><EFBFBD>룬<EFBFBD>⼸<EFBFBD><E2BCB8><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD>ʵʱ Java<76><61>RTSJ<53><4A><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> G1 ֮ǰ<D6AE><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC>ķ<EFBFBD>Χ<EFBFBD><CEA7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> G1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Java <20>ѵ<EFBFBD><D1B5>ڴ沼<DAB4><E6B2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>кܴ<D0BA><DCB4><EFBFBD><EFBFBD>𣬽<EFBFBD><F0A3ACBD><EFBFBD><EFBFBD><EFBFBD> Java <20>ѻ<EFBFBD><D1BB><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD>ȵĶ<C8B5><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Region<6F><6E><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EEA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˣ<EFBFBD><CBA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD> Region<6F><6E><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC>ϡ<EFBFBD>
|
||||
|
||||
֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ģ<EFBFBD>ͣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>мƻ<EFBFBD><EFBFBD>ر<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Java <20><><EFBFBD>н<EFBFBD><D0BD><EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٸ<EFBFBD><D9B8><EFBFBD> Region <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѻ<EFBFBD><D1BB>ļ<EFBFBD>ֵ<EFBFBD><D6B5>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õĿռ<C4BF><D5BC><EFBFBD>С<EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>ľ<EFBFBD><C4BE><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD>ں<EFBFBD>̨ά<CCA8><CEAC>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><D0B1><EFBFBD>ÿ<EFBFBD>θ<EFBFBD><CEB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>ʱ<EFBFBD>䣬<EFBFBD><E4A3AC><EFBFBD>Ȼ<EFBFBD><C8BB>ռ<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Region<6F><6E><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD> Garbage-First <20><><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD><EFBFBD>ɣ<EFBFBD><C9A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> Region <20><><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4>ռ<EFBFBD><D5BC>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>շ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>ڿ<EFBFBD><DABF>Ի<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD>ܸߵ<DCB8><DFB5>ռ<EFBFBD>Ч<EFBFBD>ʡ<EFBFBD>
|
||||
|
||||
Region <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǹ<EFBFBD><C7B9><EFBFBD><EFBFBD>ģ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><C4B3> Region <20>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Java <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ù<EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɴ<EFBFBD><C9B4>Է<EFBFBD><D4B7><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫɨ<D2AA><C9A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Java <20>Ѳ<EFBFBD><D1B2>ܱ<EFBFBD>֤ȷ<D7BC>ԣ<EFBFBD><D4A3><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD>Ƕ<EFBFBD> GC Ч<>ʵļ<CAB5><C4BC><EFBFBD><EFBFBD>˺<EFBFBD><CBBA><EFBFBD>Ϊ<EFBFBD>˱<EFBFBD><CBB1><EFBFBD>ȫ<EFBFBD><C8AB>ɨ<EFBFBD><C9A8><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><C3BF> Region <20><>ά<EFBFBD><CEAC><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>֮<EFBFBD><D6AE>Ӧ<EFBFBD><D3A6> Remembered Set<65><74><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֳ<EFBFBD><D6B3><EFBFBD><EFBFBD>ڶ<EFBFBD> Reference <20><><EFBFBD>͵<EFBFBD><CDB5><EFBFBD><EFBFBD>ݽ<EFBFBD><DDBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> Write Barrier <20><>ʱ<EFBFBD>ж<EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Reference <20><><EFBFBD>õĶ<C3B5><C4B6><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD>ڲ<EFBFBD>ͬ<EFBFBD><CDAC> Region ֮<>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD><C7A3><EFBFBD>ͨ<EFBFBD><CDA8> CardTable <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Region <20><> Remembered Set ֮<>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD> GC <20><><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD>ö<EFBFBD>ٷ<EFBFBD>Χ<EFBFBD>м<EFBFBD><D0BC><EFBFBD> Remembered Set <20><><EFBFBD>ɱ<EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB>ɨ<EFBFBD><C9A8>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>©<EFBFBD><C2A9>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ά<EFBFBD><EFBFBD> Remembered Set <20>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD>G1 <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿ɻ<C2BF><C9BB><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>裺
|
||||
|
||||
1. <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
|
||||
2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
3. <20><><EFBFBD>ձ<EFBFBD><D5B1>ǣ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ<EFBFBD><DABC><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>±<EFBFBD><C2B1>Dz<EFBFBD><C7B2><EFBFBD><EFBFBD>䶯<EFBFBD><E4B6AF><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ֱ<EFBFBD><D6B1>Ǽ<EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>仯<EFBFBD><E4BBAF>¼<EFBFBD><C2BC><EFBFBD>̵߳<DFB3> Remembered Set Logs <20><><EFBFBD>棬<EFBFBD><E6A3AC><EFBFBD>ձ<EFBFBD><D5B1>ǽ<C7BD><D7B6><EFBFBD>Ҫ<EFBFBD><D2AA> Remembered Set Logs <20><><EFBFBD><EFBFBD><EFBFBD>ݺϲ<DDBA><CFB2><EFBFBD> Remembered Set <20>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD><D7B6><EFBFBD>Ҫͣ<D2AA><CDA3><EFBFBD>̣߳<DFB3><CCA3><EFBFBD><EFBFBD>ǿɲ<C7BF><C9B2><EFBFBD>ִ<EFBFBD>С<EFBFBD>
|
||||
4. ɸѡ<C9B8><D1A1><EFBFBD>գ<EFBFBD><D5A3><EFBFBD><EFBFBD>ȶԸ<C8B6><D4B8><EFBFBD> Region <20>еĻ<D0B5><C4BB>ռ<EFBFBD>ֵ<EFBFBD>ͳɱ<CDB3><C9B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><F2A3ACB8><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> GC ͣ<><CDA3><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD>ռƻ<D5BC><C6BB><EFBFBD><EFBFBD>˽<CBBD><D7B6><EFBFBD>ʵҲ<CAB5><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ִ<EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊֻ<CEAA><D6BB><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD> Region<6F><6E>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB>ɿ<EFBFBD><C9BF>Ƶģ<C6B5><C4A3><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><CDA3><EFBFBD>û<EFBFBD><C3BB>߳̽<DFB3><CCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>Ч<EFBFBD>ʡ<EFBFBD>
|
||||
|
||||
### 3.8 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>ıȽ<C4B1>
|
||||
|
||||
| <20>ռ<EFBFBD><D5BC><EFBFBD> | <20><><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD> or <20><><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> / <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> | <20>㷨 | Ŀ<><C4BF> | <20><><EFBFBD>ó<EFBFBD><C3B3><EFBFBD> |
|
||||
| --- | --- | --- | --- | --- | --- |
|
||||
| **Serial** | <20><><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD><EFBFBD>㷨 | <20><>Ӧ<EFBFBD>ٶ<EFBFBD><D9B6><EFBFBD><EFBFBD><EFBFBD> | <20><> CPU <20><><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD> Client ģʽ |
|
||||
| **Serial Old** | <20><><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD> | <20><>Ӧ<EFBFBD>ٶ<EFBFBD><D9B6><EFBFBD><EFBFBD><EFBFBD> | <20><> CPU <20><><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD> Client ģʽ<C4A3><CABD>CMS <20>ĺ<EFBFBD><C4BA><EFBFBD>Ԥ<EFBFBD><D4A4> |
|
||||
| **ParNew** | <20><><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD><EFBFBD>㷨 | <20><>Ӧ<EFBFBD>ٶ<EFBFBD><D9B6><EFBFBD><EFBFBD><EFBFBD> | <20><> CPU <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> Server ģʽ<C4A3><CABD><EFBFBD><EFBFBD> CMS <20><><EFBFBD><EFBFBD> |
|
||||
| **Parallel Scavenge** | <20><><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD><EFBFBD>㷨 | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> | <20>ں<EFBFBD>̨<EFBFBD><CCA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ̫<D2AA>ཻ<EFBFBD><E0BDBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| **Parallel Old** | <20><><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> | <20>ں<EFBFBD>̨<EFBFBD><CCA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ̫<D2AA>ཻ<EFBFBD><E0BDBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| **CMS** | <20><><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD> | <20><>Ӧ<EFBFBD>ٶ<EFBFBD><D9B6><EFBFBD><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD><EFBFBD>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD><EFBFBD>վ<EFBFBD><D5BE> B/S ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD> Java Ӧ<><D3A6> |
|
||||
| **G1** | <20><><EFBFBD><EFBFBD> | both | <20><><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD> + <20><><EFBFBD><EFBFBD><EFBFBD>㷨 | <20><>Ӧ<EFBFBD>ٶ<EFBFBD><D9B6><EFBFBD><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>滻 CMS |
|
||||
|
||||
## 4. <20>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ղ<EFBFBD><D5B2><EFBFBD>
|
||||
|
||||
### 4.1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Eden <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Eden <20><><EFBFBD><EFBFBD><EFBFBD>䣬<EFBFBD><E4A3AC> Eden <20><><EFBFBD>ռ䲻<D5BC><E4B2BB>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Minor GC<47><43>
|
||||
|
||||
### 4.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD>ṩ -XX:PretenureSizeThreshold <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>ֵ<EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䣬<EFBFBD><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Eden <20><><EFBFBD><EFBFBD> Survivor <20><>֮<EFBFBD><D6AE><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD>ڴ渴<DAB4>ƣ<EFBFBD>
|
||||
### 4.3 <20><><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
JVM Ϊ<><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Minor GC <20><>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD>ұ<EFBFBD> Survivor <20><><EFBFBD><EFBFBD><EFBFBD>ɵģ<C9B5><C4A3>ƶ<EFBFBD><C6B6><EFBFBD> Survivor <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1<><31>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> Minor GC <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1<><31><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD><C4AC> 15 <20>꣬ͨ<EAA3AC><CDA8> -XX:MaxTenuringThreshold <20><><EFBFBD>ã<EFBFBD><C3A3><EFBFBD>
|
||||
|
||||
|
||||
### 4.4 <20><>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> Survivor <20><><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>ܺʹ<DCBA><CDB4><EFBFBD> Survivor <20>ռ<EFBFBD>һ<EFBFBD>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5>ڸ<EFBFBD><DAB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 4.5 <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>䵣<EFBFBD><E4B5A3>
|
||||
|
||||
<EFBFBD>ڷ<EFBFBD><EFBFBD><EFBFBD> Minor GC ֮ǰ<D6AE><C7B0>JVM <20>ȼ<EFBFBD><C8BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><D0B6><EFBFBD><EFBFBD>ܿռ䣬<D5BC><E4A3AC><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD> Minor GC ȷ<><C8B7><EFBFBD>ǰ<EFBFBD>ȫ<EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ν<EFBFBD><CEBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƽ<EFBFBD><C6BD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>ڵĻ<DAB5><C4BB><EFBFBD><EFBFBD><EFBFBD> Minor GC<47><43>С<EFBFBD>ڵĻ<DAB5><C4BB><EFBFBD><EFBFBD><EFBFBD> Full GC<47><43>
|
||||
|
||||
## 4.6 Full GC <20>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> Minor GC<47><43><EFBFBD>䴥<EFBFBD><E4B4A5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>dz<EFBFBD><C7B3><EFBFBD><F2B5A5A3><EFBFBD> Eden <20><><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>ͽ<EFBFBD><CDBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> Minor GC<47><43><EFBFBD><EFBFBD> Full GC <20><><EFBFBD><EFBFBD><EFBFBD>Ը<EFBFBD><D4B8>ӣ<EFBFBD><D3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 4.6.1 <20><><EFBFBD><EFBFBD> System.gc()
|
||||
|
||||
<EFBFBD>˷<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǽ<EFBFBD><EFBFBD><EFBFBD> JVM <20><><EFBFBD><EFBFBD> Full GC<47><43><EFBFBD><EFBFBD>Ȼֻ<C8BB>ǽ<EFBFBD><C7BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܶ<EFBFBD><DCB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᴥ<EFBFBD><E1B4A5> Full GC<47><43><EFBFBD>Ӷ<EFBFBD><D3B6><EFBFBD><EFBFBD><EFBFBD> Full GC <20><>Ƶ<EFBFBD>ʣ<EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˼<EFBFBD>Ъ<EFBFBD><D0AA>ͣ<EFBFBD>ٵĴ<D9B5><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD>ҽ<EFBFBD><D2BD><EFBFBD><EFBFBD>ܲ<EFBFBD>ʹ<EFBFBD>ô˷<C3B4><CBB7><EFBFBD><EFBFBD>Ͳ<EFBFBD>Ҫʹ<D2AA>ã<EFBFBD><C3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD>ȥ<EFBFBD><C8A5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ棬<DAB4><E6A3AC>ͨ<EFBFBD><CDA8> -XX:+ DisableExplicitGC <20><><EFBFBD><EFBFBD>ֹ RMI <20><><EFBFBD><EFBFBD> System.gc()<29><>
|
||||
|
||||
### 4.6.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ䲻<D5BC><E4B2BB>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ䲻<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD> Full GC <20><><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD>㣬<EFBFBD><E3A3AC><EFBFBD>׳<EFBFBD><D7B3><EFBFBD><EFBFBD>´<EFBFBD><C2B4><EFBFBD><EFBFBD><EFBFBD> Java.lang.OutOfMemoryError: Java heap space Ϊ<><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״<EFBFBD><D7B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Full GC<47><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱӦ<CAB1><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD><EFBFBD> Minor GC <20>α<D7B6><CEB1><EFBFBD><EFBFBD>ա<EFBFBD><D5A1>ö<EFBFBD><C3B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ʱ<EFBFBD>估<EFBFBD><E4BCB0>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>顣
|
||||
|
||||
### 4.6.3 <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>䵣<EFBFBD><E4B5A3>ʧ<EFBFBD><CAA7>
|
||||
|
||||
ʹ<EFBFBD>ø<EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD> Minor GC <20><>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> HandlePromotionFailure <20><><EFBFBD><EFBFBD>ʧ<EFBFBD>ܣ<EFBFBD><DCA3><EFBFBD><EFBFBD>ᴥ<EFBFBD><E1B4A5> Full GC<47><43>
|
||||
|
||||
### 4.6.4 JDK 1.7 <20><><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><C3B4>ռ䲻<D5BC><E4B2BB>
|
||||
|
||||
<EFBFBD><EFBFBD> JDK 1.7 <20><><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0>HotSpot <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еķ<D0B5><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD>ʵ<EFBFBD>ֵģ<D6B5><C4A3><EFBFBD><EFBFBD>ô<EFBFBD><C3B4>д<EFBFBD><D0B4>ŵ<EFBFBD>ΪһЩ class <20><><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><DDA3><EFBFBD>ϵͳ<CFB5><CDB3>Ҫ<EFBFBD><D2AA><EFBFBD>ص<EFBFBD><D8B5>ࡢ<EFBFBD><E0A1A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><CDB5>õķ<C3B5><C4B7><EFBFBD><EFBFBD>϶<EFBFBD>ʱ<EFBFBD><CAB1>Permanet Generation <20><><EFBFBD>ܻᱻռ<E1B1BB><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD> CMS GC <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2>ִ<EFBFBD><D6B4> Full GC<47><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Full GC <20><>Ȼ<EFBFBD><C8BB><EFBFBD>ղ<EFBFBD><D5B2>ˣ<EFBFBD><CBA3><EFBFBD>ô JVM <20><><EFBFBD>׳<EFBFBD><D7B3><EFBFBD><EFBFBD>´<EFBFBD><C2B4><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>java.lang.OutOfMemoryError: PermGen space Ϊ<><CEAA><EFBFBD><EFBFBD> PermGen ռ<><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Full GC <20><><EFBFBD>ɲ<F3A3ACBF><C9B2>õķ<C3B5><C4B7><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD> PermGen <20>ռ<EFBFBD><D5BC><EFBFBD>תΪʹ<CEAA><CAB9> CMS GC<47><43>
|
||||
|
||||
<EFBFBD><EFBFBD> JDK 1.8 <20><><EFBFBD><EFBFBD>Ԫ<EFBFBD>ռ<EFBFBD><D5BC>滻<EFBFBD><E6BBBB><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><C3B4><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>֣<EFBFBD>Ԫ<EFBFBD>ռ<EFBFBD><D5BC>DZ<EFBFBD><C7B1><EFBFBD><EFBFBD>ڴ棬<DAB4><E6A3AC><EFBFBD>˼<EFBFBD><CBBC><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> Full GC <20><><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD>ԡ<EFBFBD>
|
||||
|
||||
### 4.6.5 Concurrent Mode Failure
|
||||
|
||||
ִ<EFBFBD><EFBFBD> CMS GC <20>Ĺ<EFBFBD><C4B9><EFBFBD><EFBFBD><EFBFBD>ͬʱ<CDAC>ж<EFBFBD><D0B6><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ䲻<D5BC>㣨<EFBFBD><E3A3A8>ʱ<EFBFBD>ռ䲻<D5BC>㡱<EFBFBD><E3A1B1> CMS GC ʱ<><CAB1>ǰ<EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ർ<EFBFBD><E0B5BC><EFBFBD><EFBFBD>ʱ<EFBFBD>ԵĿռ䲻<D5BC>㴥<EFBFBD><E3B4A5> Full GC<47><43><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᱨ Concurrent Mode Failure <20><><EFBFBD><EFBFBD><F3A3ACB2><EFBFBD><EFBFBD><EFBFBD> Full GC<47><43>
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><D8BB><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ䶯̬<EFBFBD><EFBFBD><EFBFBD>صġ<EFBFBD>
|
||||
|
||||
## 1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 7 <20><><EFBFBD>Σ<D7B6>
|
||||
|
||||
- **<2A><><EFBFBD>أ<EFBFBD>Loading<6E><67>**
|
||||
- **<2A><>֤<EFBFBD><D6A4>Verification<6F><6E>**
|
||||
- **<><D7BC><EFBFBD><EFBFBD>Preparation<6F><6E>**
|
||||
- **<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Resolution<6F><6E>**
|
||||
- **<2A><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>Initialization<6F><6E>**
|
||||
- ʹ<>ã<EFBFBD>Using<6E><67>
|
||||
- ж<>أ<EFBFBD>Unloading<6E><67>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ijЩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¿<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD>ٿ<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>֧<EFBFBD><EFBFBD> Java <20>Ķ<EFBFBD>̬<EFBFBD><EFBFBD>
|
||||
|
||||
## 2. <20><><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ʱ<EFBFBD><CAB1>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>淶<EFBFBD>в<EFBFBD>û<EFBFBD><EFBFBD>ǿ<EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><EFBFBD>أ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǹ淶<EFBFBD>ϸ<EFBFBD><EFBFBD>涨<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>г<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>( <20><><EFBFBD>ء<EFBFBD><D8A1><EFBFBD>֤<EFBFBD><D6A4><EFBFBD><D7BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŷ<EFBFBD><C5B7><EFBFBD> )
|
||||
|
||||
1. <20><><EFBFBD><EFBFBD> new<65><77>getstatic<69><63>putstatic<69><63>invokestatic <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD>ָ<EFBFBD><D6B8>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>н<EFBFBD><D0BD>й<EFBFBD><D0B9><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EEB3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 4 <20><>ָ<EFBFBD><D6B8><EFBFBD>ij<EFBFBD><C4B3><EFBFBD><EFBFBD>ǣ<EFBFBD>ʹ<EFBFBD><CAB9> new <20>ؼ<EFBFBD><D8BC><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ľ<EFBFBD>̬<EFBFBD>ֶΣ<D6B6><CEA3><EFBFBD> final <20><><EFBFBD>Ρ<EFBFBD><CEA1><EFBFBD><EFBFBD>ڱ<EFBFBD><DAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѽ<EFBFBD><D1BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>볣<EFBFBD><EBB3A3><EFBFBD>صľ<D8B5>̬<EFBFBD>ֶγ<D6B6><CEB3>⣩<EFBFBD><E2A3A9>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ľ<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
|
||||
|
||||
2. ʹ<><CAB9> java.lang.reflect <20><><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>з<EFBFBD><D0B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>н<EFBFBD><D0BD>г<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
|
||||
|
||||
3. <20><><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>丸<EFBFBD>û<E0BBB9>н<EFBFBD><D0BD>й<EFBFBD><D0B9><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD>丸<EFBFBD><E4B8B8><EFBFBD>ij<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
|
||||
|
||||
4. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>û<EFBFBD><C3BB><EFBFBD>Ҫָ<D2AA><D6B8>һ<EFBFBD><D2BB>Ҫִ<D2AA>е<EFBFBD><D0B5><EFBFBD><EFBFBD>ࣨ<EFBFBD><E0A3A8><EFBFBD><EFBFBD> main() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǹ<EFBFBD><C7B8>ࣩ<EFBFBD><E0A3A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȳ<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ࣻ
|
||||
|
||||
5. <20><>ʹ<EFBFBD><CAB9> jdk1.7 <20>Ķ<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD>֧<EFBFBD><D6A7>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> java.lang.invoke.MethodHandle ʵ<><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><C4BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ REF_getStatic, REF_putStatic, REF_invokeStatic <20>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD>û<EFBFBD>н<EFBFBD><D0BD>й<EFBFBD><D0B9><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> 5 <20>ֳ<EFBFBD><D6B3><EFBFBD><EFBFBD>е<EFBFBD><D0B5><EFBFBD>Ϊ<EFBFBD><CEAA>Ϊ<EFBFBD><CEAA>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>á<EFBFBD><C3A1><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD>⣬<EFBFBD><E2A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD>ᴥ<EFBFBD><E1B4A5><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>á<EFBFBD><C3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õij<C3B5><C4B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӱ<EFBFBD><D3B0><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
1\. ͨ<><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ø<EFBFBD><C3B8><EFBFBD><EFBFBD>ľ<EFBFBD>̬<EFBFBD>ֶΣ<D6B6><CEA3><EFBFBD><EFBFBD>ᵼ<EFBFBD><E1B5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
System.out.println(SubClass.value); // value <20>ֶ<EFBFBD><D6B6><EFBFBD> SuperClass <20>ж<EFBFBD><D0B6><EFBFBD>
|
||||
```
|
||||
|
||||
2\. ͨ<><CDA8><EFBFBD><EFBFBD><EFBFBD>鶨<EFBFBD><E9B6A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD><E0A3AC><EFBFBD>ᴥ<EFBFBD><E1B4A5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD>ù<EFBFBD><C3B9>̻<EFBFBD><CCBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>г<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD>ɵġ<C9B5>ֱ<EFBFBD>Ӽ̳<D3BC><CCB3><EFBFBD> Object <20><><EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD><E0A3AC><EFBFBD>а<EFBFBD><D0B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ժͷ<D4BA><CDB7><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
SuperClass[] sca = new SuperClass[10];
|
||||
```
|
||||
|
||||
3\. <20><><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD><DAB1><EFBFBD><EFBFBD>λ<D7B6><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><C4B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD>û<EFBFBD><C3BB>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD>峣<EFBFBD><E5B3A3><EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD><E0A3AC><EFBFBD>˲<EFBFBD><CBB2>ᴥ<EFBFBD><E1B4A5><EFBFBD><EFBFBD><EFBFBD>峣<EFBFBD><E5B3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
System.out.println(ConstClass.HELLOWORLD);
|
||||
```
|
||||
|
||||
## 3. <20><><EFBFBD><EFBFBD><EFBFBD>ع<EFBFBD><D8B9><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˼<EFBFBD><EFBFBD>ء<EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͳ<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> 5 <20><><EFBFBD>Ρ<D7B6>
|
||||
|
||||
### 3.1 <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>Σ<EFBFBD>ע<EFBFBD>ⲻҪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ع<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>
|
||||
|
||||
1. ͨ<><CDA8>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD><DEB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD>
|
||||
2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ľ<EFBFBD>̬<EFBFBD>洢<EFBFBD>ṹת<E1B9B9><D7AA>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>洢<EFBFBD>ṹ<EFBFBD><E1B9B9>
|
||||
3. <20><><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Class <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵķ<DDB5><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ʽ<EFBFBD>л<EFBFBD>ȡ<EFBFBD><EFBFBD>
|
||||
|
||||
- <20><> ZIP <20><><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD>ܳ<EFBFBD><DCB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ճ<EFBFBD>Ϊ<EFBFBD>պ<EFBFBD> JAR<41><52>EAR<41><52>WAR <20><>ʽ<EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD>
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD>ֳ<EFBFBD><D6B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD> Applet<65><74>
|
||||
- <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><C9A3><EFBFBD><EFBFBD>ֳ<EFBFBD><D6B3><EFBFBD>ʹ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>þ<EFBFBD><C3BE>Ƕ<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> java.lang.reflect.Proxy <20>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ProxyGenerator.generateProxyClass <20>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD>
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD>ɣ<EFBFBD><C9A3><EFBFBD><EFBFBD>ͳ<EFBFBD><CDB3><EFBFBD><EFBFBD><EFBFBD> JSP Ӧ<>ã<EFBFBD><C3A3><EFBFBD><EFBFBD><EFBFBD> JSP <20>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD>ɶ<EFBFBD>Ӧ<EFBFBD><D3A6> Class <20>ࡣ
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD>ֳ<EFBFBD><D6B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ټ<EFBFBD><D9BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD>м<EFBFBD><D0BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SAP Netweaver<65><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><D1A1><EFBFBD>ѳ<EFBFBD><D1B3><EFBFBD><EFBFBD><EFBFBD>װ<EFBFBD><D7B0><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɳ<EFBFBD><C9B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ<EFBFBD>Ⱥ<EFBFBD><C8BA><EFBFBD>ķַ<C4B7><D6B7><EFBFBD>
|
||||
...
|
||||
|
||||
### 3.2 <20><>֤
|
||||
|
||||
ȷ<EFBFBD><EFBFBD> Class <20>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD>а<EFBFBD><D0B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD>ϵ<EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><F3A3ACB2>Ҳ<EFBFBD><D2B2><EFBFBD>Σ<EFBFBD><CEA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>İ<EFBFBD>ȫ<EFBFBD><C8AB>
|
||||
|
||||
<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 4 <20><><EFBFBD>Σ<D7B6>
|
||||
|
||||
1. <20>ļ<EFBFBD><C4BC><EFBFBD>ʽ<EFBFBD><CABD>֤
|
||||
2. Ԫ<><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
3. <20>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><D6A4>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϳ<EFBFBD><CDBF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǺϷ<C7BA><CFB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><DFBC>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
4. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤
|
||||
|
||||
### 3.3 <><D7BC>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DZ<EFBFBD> static <20><><EFBFBD>εı<CEB5><C4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><D7BC><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ沢<DAB4><E6B2A2><EFBFBD>ó<EFBFBD>ʼֵ<CABC><D6B5>ʹ<EFBFBD>õ<EFBFBD><C3B5>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ档
|
||||
|
||||
ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>η<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ棬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڶ<EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>Ŷ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Java <20><><EFBFBD>С<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>ʼֵһ<EFBFBD><EFBFBD>Ϊ 0 ֵ<><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> value <20><><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>Ϊ 0 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 123<32><33>
|
||||
|
||||
```java
|
||||
public static int value = 123;
|
||||
```
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>dz<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD>ᰴ<EFBFBD>ձ<EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>г<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǹ<EFBFBD>ֵΪ 0<><30>
|
||||
|
||||
```java
|
||||
public static final int value = 123;
|
||||
```
|
||||
|
||||
### 3.4 <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>صķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>滻Ϊֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õĹ<EFBFBD><EFBFBD>̡<EFBFBD>
|
||||
|
||||
### 3.5 <20><>ʼ<EFBFBD><CABC>
|
||||
|
||||
<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD>μ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <clinit>() <20><><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9>̡<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Σ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ϵͳҪ<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>ʼֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD>Σ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><EFBFBD><EFBFBD>Աͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ۼƻ<EFBFBD>ȥ<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>
|
||||
|
||||
<clinit>() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص㣺
|
||||
|
||||
- <20><><EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD>;<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD>飨static{} <20>飩<EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>˳<EFBFBD><CBB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD>ļ<EFBFBD><C4BC>г<EFBFBD><D0B3>ֵ<EFBFBD>˳<EFBFBD><CBB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ر<EFBFBD>ע<EFBFBD><D7A2><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD><C7A3><EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>ܷ<EFBFBD><DCB7>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮ǰ<D6AE><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>ܸ<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD>ܷ<EFBFBD><DCB7>ʡ<EFBFBD><CAA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>´<EFBFBD><C2B4>룺
|
||||
|
||||
```java
|
||||
public class Test {
|
||||
static {
|
||||
i = 0; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>
|
||||
System.out.print(i); // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD>á<EFBFBD>
|
||||
}
|
||||
static int i = 1;
|
||||
}
|
||||
```
|
||||
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9>캯<EFBFBD><ECBAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵ʵ<CBB5><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <init>()<29><><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA>ʽ<EFBFBD>ĵ<EFBFBD><C4B5>ø<EFBFBD><C3B8><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD>֤<EFBFBD><D6A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <clinit>() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮ǰ<D6AE><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <clinit>() <20><><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD>ִ<EFBFBD>н<EFBFBD><D0BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>һ<EFBFBD><D2BB>ִ<EFBFBD><D6B4> <clinit>() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>϶<EFBFBD>Ϊ java.lang.Object<63><74>
|
||||
|
||||
- <20><><EFBFBD>ڸ<EFBFBD><DAB8><EFBFBD><EFBFBD><EFBFBD> <clinit>() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>У<EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD>ζ<EFBFBD>Ÿ<EFBFBD><C5B8><EFBFBD><EFBFBD>ж<EFBFBD><D0B6><EFBFBD><EFBFBD>ľ<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>´<EFBFBD><C2B4>룺
|
||||
|
||||
```java
|
||||
static class Parent {
|
||||
public static int A = 1;
|
||||
static {
|
||||
A = 2;
|
||||
}
|
||||
}
|
||||
|
||||
static class Sub extends Parent {
|
||||
public static int B = A;
|
||||
}
|
||||
|
||||
public static void main(String[] args) {
|
||||
System.out.println(Sub.B); // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǹ<EFBFBD><C7B8><EFBFBD><EFBFBD>еľ<D0B5>̬<EFBFBD><CCAC><EFBFBD><EFBFBD>ֵ A<><41>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD> 2
|
||||
}
|
||||
```
|
||||
|
||||
- <clinit>() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿڲ<D3BF><DAB2>DZ<EFBFBD><C7B1><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD><D0B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD>飬Ҳû<D2B2>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <clinit>() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
- <20>ӿ<EFBFBD><D3BF>в<EFBFBD><D0B2><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>þ<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD>飬<EFBFBD><E9A3AC><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD>ĸ<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˽ӿ<CBBD><D3BF><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <clinit>() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿ<EFBFBD><D3BF><EFBFBD><EFBFBD>ͬ<E0B2BB><CDAC><EFBFBD>ǣ<EFBFBD>ִ<EFBFBD>нӿڵ<D3BF> <clinit>() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA>ִ<EFBFBD>и<EFBFBD><D0B8>ӿڵ<D3BF> <clinit>() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD>ӿ<EFBFBD><D3BF>ж<EFBFBD><D0B6><EFBFBD><EFBFBD>ı<EFBFBD><C4B1><EFBFBD>ʹ<EFBFBD><CAB9>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ӿڲŻ<DAB2><C5BB><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⣬<EFBFBD>ӿڵ<D3BF>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD>ʼ<EFBFBD><CABC>ʱҲһ<D2B2><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>нӿڵ<D3BF> <clinit>() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᱣ֤һ<D6A4><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <clinit>() <20><><EFBFBD><EFBFBD><EFBFBD>ڶ<EFBFBD><DAB6>̻߳<DFB3><CCBB><EFBFBD><EFBFBD>±<EFBFBD><C2B1><EFBFBD>ȷ<EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>ͬʱ<CDAC><CAB1>ʼ<EFBFBD><CABC>һ<EFBFBD><D2BB><EFBFBD>ֻ࣬<E0A3AC><D6BB><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>߳<EFBFBD>ִ<EFBFBD><D6B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <clinit>() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̶߳<DFB3><CCB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȴ<EFBFBD><C8B4><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD>߳<EFBFBD>ִ<EFBFBD><D6B4> <clinit>() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϡ<EFBFBD><CFA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <clinit>() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>к<EFBFBD>ʱ<EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϳ<EFBFBD><CDBF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɶ<EFBFBD><C9B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ρ<EFBFBD>
|
||||
|
||||
## 4. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŶӰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؽ<EFBFBD><EFBFBD>еġ<EFBFBD>ͨ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD> ( <20><><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD> )<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD> Java <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ⲿȥʵ<C8A5>֣<EFBFBD><D6A3>Ա<EFBFBD><D4B1><EFBFBD>Ӧ<EFBFBD>ó<EFBFBD><C3B3><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȥ<EFBFBD><C8A5>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ࡣʵ<E0A1A3><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 4.1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ɼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>౾<EFBFBD><EFBFBD>һͬȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Java <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>Ψһ<CEA8>ԣ<EFBFBD>ÿһ<C3BF><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƿռ䡣ͨ<E4A1A3><EFBFBD><D7B6>ԣ<EFBFBD><D4A3>Ƚ<EFBFBD><C8BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>ġ<EFBFBD><C4A1><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Class <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> equals() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>isAssignableFrom() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>isInstance() <20><><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><C4B7>ؽ<EFBFBD><D8BD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> instanceof() <20>ؼ<EFBFBD><D8BC>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>ͬһ<CDAC><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD>²<EFBFBD><C2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>壬<EFBFBD><E5A3AC><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4>ͬһ<CDAC><D2BB> Class <20>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD>ͬһ<CDAC><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>أ<EFBFBD>ֻҪ<D6BB><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǵ<EFBFBD><C7B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͱض<CDB1><D8B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD>
|
||||
|
||||
### 4.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> Java <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĽǶ<C4BD><C7B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֲ<EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Bootstrap ClassLoader<65><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> C++ ʵ<>֣<EFBFBD><D6A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>֣<EFBFBD><D6A3><EFBFBD>һ<EFBFBD>־<EFBFBD><D6BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD><D0A9><EFBFBD><EFBFBD> Java ʵ<>֣<EFBFBD><D6A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ⲿ<EFBFBD><E2B2BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD>̳<EFBFBD><CCB3>Գ<EFBFBD><D4B3><EFBFBD><EFBFBD><EFBFBD> java.lang.ClassLoader<65><72>
|
||||
|
||||
<EFBFBD><EFBFBD> Java <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD>ĽǶȿ<C7B6><C8BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ի<EFBFBD><D4BB>ֵø<D6B5>ϸ<EFBFBD><CFB8>һЩ<D2BB><D0A9>
|
||||
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Bootstrap ClassLoader<65><72> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><F0BDABB4><EFBFBD><EFBFBD><EFBFBD> <JAVA_HOME>\lib Ŀ¼<C4BF>еģ<D0B5><C4A3><EFBFBD><EFBFBD>߱<EFBFBD> -Xbootclasspath <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD>еģ<D0B5><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʶ<EFBFBD><CAB6><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD>ʶ<EFBFBD><CAB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD> rt.jar<61><72><EFBFBD><EFBFBD><EFBFBD>ֲ<EFBFBD><D6B2><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD>⼴ʹ<E2BCB4><CAB9><EFBFBD><EFBFBD> lib Ŀ¼<C4BF><C2BC>Ҳ<EFBFBD><D2B2><EFBFBD>ᱻ<EFBFBD><E1B1BB><EFBFBD>أ<EFBFBD><D8A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4>С<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><DEB7><EFBFBD> Java <20><><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><C3A3>û<EFBFBD><C3BB>ڱ<EFBFBD>д<EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>Ѽ<EFBFBD><D1BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ί<EFBFBD>ɸ<EFBFBD><C9B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1>ʹ<EFBFBD><CAB9> null <20><><EFBFBD>漴<EFBFBD>ɡ<EFBFBD>
|
||||
|
||||
- <20><>չ<EFBFBD><D5B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Extension ClassLoader<65><72> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ExtClassLoader<65><72>sun.misc.Launcher$ExtClassLoader<65><72>ʵ<EFBFBD>ֵġ<D6B5><C4A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <Java_Home>/lib/ext <20><><EFBFBD>߱<EFBFBD> java.ext.dir ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>·<EFBFBD><C2B7><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><D8B5>ڴ<EFBFBD><DAB4>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߿<EFBFBD><DFBF><EFBFBD>ֱ<EFBFBD><D6B1>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD>չ<EFBFBD><D5B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
- Ӧ<>ó<EFBFBD><C3B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Application ClassLoader<65><72> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> AppClassLoader<65><72>sun.misc.Launcher$AppClassLoader<65><72>ʵ<EFBFBD>ֵġ<D6B5><C4A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ClassLoader <20>е<EFBFBD> getSystemClassLoader() <20><><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>Ϊϵͳ<CFB5><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD>ClassPath<74><68><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⣬<EFBFBD><E2A3AC><EFBFBD><EFBFBD><EFBFBD>߿<EFBFBD><DFBF><EFBFBD>ֱ<EFBFBD><D6B1>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ó<EFBFBD><C3B3><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>dz<EFBFBD><C7B3><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 4.3 ˫<><CBAB>ί<EFBFBD><CEAF>ģ<EFBFBD><C4A3>
|
||||
|
||||
Ӧ<EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͻ<EFBFBD><EFBFBD>м<EFBFBD><EFBFBD>صģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼչʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD>ι<EFBFBD>ϵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˫<EFBFBD><EFBFBD>ί<EFBFBD><EFBFBD>ģ<EFBFBD>ͣ<EFBFBD>Parents Delegation Model<65><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD>˶<EFBFBD><CBB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⣬<EFBFBD><E2A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD>Լ<EFBFBD><D4BC>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD>ĸ<EFBFBD><C4B8>ӹ<EFBFBD>ϵһ<CFB5><D2BB>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD>ϣ<EFBFBD>Composition<6F><6E><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5>ʵ<EFBFBD>֣<EFBFBD><D6A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD>̳У<CCB3>Inheritance<63><65><EFBFBD>Ĺ<EFBFBD>ϵʵ<CFB5>֡<EFBFBD>
|
||||
|
||||
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD>ȥ<EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD>أ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ί<EFBFBD>ɸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>εļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>εݹ飬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ն<EFBFBD>Ӧ<EFBFBD>ô<EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>ֻ<EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɴ˼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Χ<EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ࣩʱ<EFBFBD><EFBFBD><EFBFBD>Ӽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ż᳢<EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ء<EFBFBD>
|
||||
|
||||
**<EFBFBD>ô<EFBFBD>**
|
||||
|
||||
ʹ<EFBFBD><EFBFBD>˫<EFBFBD><EFBFBD>ί<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD>ϵ<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD> Java <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>߱<EFBFBD><DFB1><EFBFBD>һ<EFBFBD>ִ<EFBFBD><D6B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC>IJ<EFBFBD><C4B2>ι<EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> java.lang.Object<63><74><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> rt.jar <20>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD><E0A3AC><EFBFBD>ն<EFBFBD><D5B6><EFBFBD>ί<EFBFBD>ɸ<EFBFBD><C9B8><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD>˵<EFBFBD><CBB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><D0BC>أ<EFBFBD><D8A3><EFBFBD><EFBFBD><EFBFBD> Object <20><><EFBFBD>ڳ<EFBFBD><DAB3><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><D0B6><EFBFBD>ͬһ<CDAC><D2BB><EFBFBD>ࡣ<EFBFBD>෴<EFBFBD><E0B7B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB>˫<EFBFBD><CBAB>ί<EFBFBD><CEAF>ģ<EFBFBD>ͣ<EFBFBD><CDA3>ɸ<EFBFBD><C9B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><D0BC>صĻ<D8B5><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD>д<EFBFBD><D0B4>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>java.lang.Object <20><><EFBFBD>࣬<EFBFBD><E0A3AC><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD><DAB3><EFBFBD><EFBFBD><EFBFBD> ClassPath <20>У<EFBFBD><D0A3><EFBFBD>ϵͳ<CFB5>н<EFBFBD><D0BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC> Object <20>࣬<EFBFBD><E0A3AC><EFBFBD><EFBFBD><F2BDABB1><EFBFBD>һƬ<D2BB><C6AC><EFBFBD>ҡ<EFBFBD><D2A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD><DFB3>Ա<EFBFBD>дһ<D0B4><D2BB><EFBFBD><EFBFBD> rt.jar <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Java <20>࣬<EFBFBD><E0A3AC><EFBFBD>ᷢ<EFBFBD>ֿ<EFBFBD><D6BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><DEB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>
|
||||
|
||||
**ʵ<><CAB5>**
|
||||
|
||||
```java
|
||||
protected synchronized Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException{
|
||||
//check the class has been loaded or not
|
||||
Class c = findLoadedClass(name);
|
||||
if(c == null) {
|
||||
try{
|
||||
if(parent != null) {
|
||||
c = parent.loadClass(name, false);
|
||||
} else{
|
||||
c = findBootstrapClassOrNull(name);
|
||||
}
|
||||
} catch(ClassNotFoundException e) {
|
||||
//if throws the exception , the father can not complete the load
|
||||
}
|
||||
if(c == null) {
|
||||
c = findClass(name);
|
||||
}
|
||||
}
|
||||
if(resolve) {
|
||||
resolveClass(c);
|
||||
}
|
||||
return c;
|
||||
}
|
||||
```
|
||||
|
||||
# JVM <20><><EFBFBD><EFBFBD>
|
||||
|
||||
## GC <20>Ż<EFBFBD><C5BB><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
| <20><><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD> |
|
||||
| --- | --- |
|
||||
| -Xms | <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>С |
|
||||
| -Xmx | <20><><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD>ֵ |
|
||||
| -Xmn | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С |
|
||||
| -XX:PermSize | <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><C3B4><EFBFBD>С |
|
||||
| -XX:MaxPermSize | <20><><EFBFBD>ô<EFBFBD><C3B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
|
||||
## GC <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
| <20><><EFBFBD><EFBFBD> | <20><><EFBFBD><EFBFBD> |
|
||||
| --- | --- |
|
||||
| -XX:+UseSerialGC | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| -XX:+UseParallelGC | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| -XX:+UseConcMarkSweepGC | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɨ<EFBFBD><C9A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| -XX:ParallelCMSThreads= | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɨ<EFBFBD><C9A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> = Ϊʹ<CEAA>õ<EFBFBD><C3B5>߳<EFBFBD><DFB3><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| -XX:+UseG1GC | G1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
|
||||
```java
|
||||
java -Xmx12m -Xms3m -Xmn1m -XX:PermSize=20m -XX:MaxPermSize=20m -XX:+UseSerialGC -jar java-application.jar
|
||||
```
|
||||
406
notes/Java IO.md
Normal file
406
notes/Java IO.md
Normal file
@ -0,0 +1,406 @@
|
||||
<!-- GFM-TOC -->
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD>̲<EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD>̲<EFBFBD><CCB2><EFBFBD>)
|
||||
* [<EFBFBD>ֽڲ<EFBFBD><EFBFBD><EFBFBD>](#<23>ֽڲ<D6BD><DAB2><EFBFBD>)
|
||||
* [<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [1. InetAddress](#1-inetaddress)
|
||||
* [2. URL](#2-url)
|
||||
* [3. Sockets](#3-sockets)
|
||||
* [4. Datagram](#4-datagram)
|
||||
* [NIO](#nio)
|
||||
* [1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#1-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [2. ͨ<><CDA8><EFBFBD>뻺<EFBFBD><EBBBBA><EFBFBD><EFBFBD>](#2-ͨ<><CDA8><EFBFBD>뻺<EFBFBD><EBBBBA><EFBFBD><EFBFBD>)
|
||||
* [2.1 ͨ<><CDA8>](#21-ͨ<><CDA8>)
|
||||
* [2.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#22-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD><EFBFBD>](#3-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD><EFBFBD>)
|
||||
* [4. <20><>д<EFBFBD>ļ<EFBFBD>ʵ<EFBFBD><CAB5>](#4-<2D><>д<EFBFBD>ļ<EFBFBD>ʵ<EFBFBD><CAB5>)
|
||||
* [5. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#5-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [5.1 <20><><EFBFBD><EFBFBD>ʽ I/O](#51-<2D><><EFBFBD><EFBFBD>ʽ-io)
|
||||
* [5.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ I/O](#52-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ-io)
|
||||
* [6. <20><EFBFBD><D7BD><EFBFBD>ʵ<EFBFBD><CAB5>](#6-<2D><EFBFBD><D7BD><EFBFBD>ʵ<EFBFBD><CAB5>)
|
||||
* [6.1 ServerSocketChannel](#61-serversocketchannel)
|
||||
* [6.2 Selectors](#62-selectors)
|
||||
* [6.3 <20><>ѭ<EFBFBD><D1AD>](#63-<2D><>ѭ<EFBFBD><D1AD>)
|
||||
* [6.4 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#64-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [6.5 <20><><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD><C2B5><EFBFBD><EFBFBD><EFBFBD>](#65-<2D><><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD><C2B5><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [6.6 ɾ<><C9BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SelectionKey](#66-ɾ<><C9BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-selectionkey)
|
||||
* [6.7 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> I/O](#67-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-io)
|
||||
* [<EFBFBD>ο<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD>)
|
||||
<!-- GFM-TOC -->
|
||||
|
||||
# <20><><EFBFBD><EFBFBD>
|
||||
|
||||
Java <20><> I/O <20><><EFBFBD>ſ<EFBFBD><C5BF>Էֳ<D4B7><D6B3><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD>
|
||||
|
||||
1. <20><><EFBFBD>̲<EFBFBD><CCB2><EFBFBD><EFBFBD><EFBFBD>File
|
||||
2. <20>ֽڲ<D6BD><DAB2><EFBFBD><EFBFBD><EFBFBD>InputStream <20><> OutputStream
|
||||
3. <20>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Reader <20><> Writer
|
||||
4. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Serializable
|
||||
5. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Socket
|
||||
6. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ IO<49><4F>NIO
|
||||
|
||||
# <20><><EFBFBD>̲<EFBFBD><CCB2><EFBFBD>
|
||||
|
||||
File <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD>ʾ<EFBFBD>ļ<EFBFBD><C4BC><EFBFBD>Ŀ¼<C4BF><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD>ڱ<EFBFBD>ʾ<EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>
|
||||
|
||||
# <20>ֽڲ<D6BD><DAB2><EFBFBD>
|
||||
|
||||
|
||||
|
||||
Java I/O ʹ<><CAB9><EFBFBD><EFBFBD>װ<EFBFBD><D7B0><EFBFBD><EFBFBD>ģʽ<C4A3><CABD>ʵ<EFBFBD>֡<EFBFBD><D6A1><EFBFBD> InputStream Ϊ<><CEAA><EFBFBD><EFBFBD>InputStream <20>dz<EFBFBD><C7B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>FileInputStream <20><> InputStream <20><><EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD><E0A3AC><EFBFBD>ھ<EFBFBD><DABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD><E1B9A9><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>FilterInputStream <20><><EFBFBD>ڳ<EFBFBD><DAB3><EFBFBD>װ<EFBFBD><D7B0><EFBFBD>ߣ<EFBFBD>װ<EFBFBD><D7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>װ<EFBFBD><D7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD><E1B9A9><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9>ܣ<EFBFBD><DCA3><EFBFBD><EFBFBD><EFBFBD> BufferedInputStream Ϊ FileInputStream <20>ṩ<EFBFBD><E1B9A9><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9>ܡ<EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><D0BB>湦<EFBFBD>ܵ<EFBFBD><DCB5>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>ֻ<EFBFBD><D6BB>Ҫ<EFBFBD><D2AA> FileInputStream <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> BufferedInputStream <20><><EFBFBD>ɡ<F3BCB4BF>
|
||||
|
||||
```java
|
||||
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));
|
||||
```
|
||||
|
||||
DataInputStream װ<><D7B0><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD>˶Ը<CBB6><D4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͽ<EFBFBD><CDBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> int<6E><74>double <20>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
byte[] buf = new byte[20*1024];
|
||||
int bytes = 0;
|
||||
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ buf.length <20><><EFBFBD>ֽڣ<D6BD><DAA3><EFBFBD><EFBFBD>ص<EFBFBD><D8B5><EFBFBD>ʵ<EFBFBD>ʶ<EFBFBD>ȡ<EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> -1 <20><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD> eof<6F><66><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>β
|
||||
while((bytes = in.read(buf, 0 , buf.length)) != -1) {
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
# <20>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǵ<EFBFBD><EFBFBD>̻<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>紫<EFBFBD>䣬<EFBFBD><EFBFBD>С<EFBFBD>Ĵ洢<EFBFBD><EFBFBD>Ԫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽڣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> I/O <20><><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD>ֽڶ<D6BD><DAB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD><DAB3><EFBFBD><EFBFBD>в<EFBFBD><D0B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ṩ<EFBFBD><E1B9A9><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>в<EFBFBD><D0B2><EFBFBD><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
InputStreamReader ʵ<>ִ<EFBFBD><D6B4>ı<EFBFBD><C4B1>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>OutputStreamWriter ʵ<><CAB5><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ı<EFBFBD><C4B1>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƕ<EFBFBD><C7B6>̳<EFBFBD><CCB3><EFBFBD> Reader <20><> Writer<65><72>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD>ַ<EFBFBD>ת<EFBFBD><EFBFBD>Ϊ<EFBFBD>ֽڣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϳ<EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
byte[] bytes = str.getBytes(encoding); // <20><><EFBFBD><EFBFBD>
|
||||
String str = new String(bytes, encoding)<EFBFBD><EFBFBD> // <20><><EFBFBD><EFBFBD>
|
||||
```
|
||||
|
||||
GBK <20><><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD>ռ 2 <20><><EFBFBD>ֽڣ<D6BD>Ӣ<EFBFBD><D3A2>ռ 1 <20><><EFBFBD>ֽڣ<D6BD>UTF-8 <20><><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD>ռ 3 <20><><EFBFBD>ֽڣ<D6BD>Ӣ<EFBFBD><D3A2>ռ 1 <20><><EFBFBD>ֽڣ<D6BD>Java ʹ<><CAB9>˫<EFBFBD>ֽڱ<D6BD><DAB1><EFBFBD> UTF-16be<62><65><EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD>Ӣ<EFBFBD>Ķ<EFBFBD>ռ 2 <20><><EFBFBD>ֽڡ<D6BD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ò<EFBFBD>ͬ<EFBFBD>ı<EFBFBD><EFBFBD>뷽ʽ<EFBFBD><EFBFBD>ô<EFBFBD>ͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>롣
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǽ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD>ʹ<EFBFBD><EFBFBD>䡣
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD>ObjectOutputStream.writeObject()
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD>ObjectInputStream.readObject()
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫʵ<EFBFBD><EFBFBD> Serializable <20>ӿڣ<D3BF><DAA3><EFBFBD>ֻ<EFBFBD><D6BB>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><D7BC>û<EFBFBD><C3BB><EFBFBD>κη<CEBA><CEB7><EFBFBD><EFBFBD><EFBFBD>Ҫʵ<D2AA>֡<EFBFBD>
|
||||
|
||||
transient <20>ؼ<EFBFBD><D8BC>ֿ<EFBFBD><D6BF><EFBFBD>ʹһЩ<D2BB><D0A9><EFBFBD>Բ<EFBFBD><D4B2>ᱻ<EFBFBD><E1B1BB><EFBFBD>л<EFBFBD><D0BB><EFBFBD>
|
||||
|
||||
**ArrayList <20><><EFBFBD>л<EFBFBD><D0BB>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>л<EFBFBD><D0BB><EFBFBD>ʵ<EFBFBD><CAB5>**<EFBFBD><EFBFBD>ArrayList <20>д洢<D0B4><E6B4A2><EFBFBD>ݵ<EFBFBD><DDB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> transient <20><><EFBFBD>εģ<CEB5><C4A3><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƕ<EFBFBD>̬<EFBFBD><CCAC>չ<EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĿռ䶼<D5BC><E4B6BC>ʹ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD><EFBFBD>˾Ͳ<CBBE><CDB2><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD>ݶ<EFBFBD><DDB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><D0BB><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD>л<EFBFBD><D0BB>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><DDB5>Dz<EFBFBD><C7B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>
|
||||
|
||||
```
|
||||
private transient Object[] elementData;
|
||||
```
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
Java <20>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>֧<EFBFBD>֣<EFBFBD>
|
||||
|
||||
1. InetAddress<73><73><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD>Ӳ<EFBFBD><D3B2><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7>
|
||||
2. URL<52><4C>ͳһ<CDB3><D2BB>Դ<EFBFBD><D4B4>λ<EFBFBD><CEBB><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8> URL <20><><EFBFBD><EFBFBD>ֱ<EFBFBD>Ӷ<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD>ݣ<EFBFBD>
|
||||
3. Sockets<74><73>ʹ<EFBFBD><CAB9> TCP Э<><D0AD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>ţ<EFBFBD>
|
||||
4. Datagram<61><6D>ʹ<EFBFBD><CAB9> UDP Э<><D0AD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>š<EFBFBD>
|
||||
|
||||
## 1. InetAddress
|
||||
|
||||
û<EFBFBD>й<EFBFBD><EFBFBD>й<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> InetAddress.getByName(String host)<29><>InetAddress.getByAddress(byte[] addr)<29><>
|
||||
|
||||
## 2. URL
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>Ӵ<EFBFBD> URL <20>ж<EFBFBD>ȡ<EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
URL url = new URL("http://www.baidu.com");
|
||||
InputStream is = url.openStream(); // <20>ֽ<EFBFBD><D6BD><EFBFBD>
|
||||
InputStreamReader isr = new InputStreamReader(is, "utf-8"); // <20>ַ<EFBFBD><D6B7><EFBFBD>
|
||||
BufferedReader br = new BufferedReader(isr);
|
||||
String line = br.readLine();
|
||||
while (line != null) {
|
||||
System.out.println(line);
|
||||
line = br.readLine();
|
||||
}
|
||||
br.close();
|
||||
isr.close();
|
||||
is.close();
|
||||
```
|
||||
|
||||
## 3. Sockets
|
||||
|
||||
Socket ͨ<><CDA8>ģ<EFBFBD><C4A3>
|
||||
|
||||
|
||||
|
||||
- ServerSocket<65><74><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
- Socket<65><74><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϳͻ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD> InputStream <20><> OutputStream <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## 4. Datagram
|
||||
|
||||
- DatagramPacket<65><74><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD><DDB0><EFBFBD>
|
||||
- DatagramSocket<65><74>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>
|
||||
|
||||
# NIO
|
||||
|
||||
NIO <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> I/O <20><><EFBFBD><EFBFBD> ( <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ) ת<>ƻز<C6BB><D8B2><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>Աȥ<D4B1><C8A5><EFBFBD>ƾͿ<C6BE><CDBF>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶȡ<D9B6>
|
||||
|
||||
## 1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
I/O <20><> NIO <20><><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD><EFBFBD>ʹ<EFBFBD><CDB4><EFBFBD><EFBFBD>ķ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD>ᵽ<EFBFBD>ģ<EFBFBD>I/O <20><><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><DDA3><EFBFBD> NIO <20>Կ<EFBFBD><D4BF>ķ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> I/O һ<><D2BB>һ<EFBFBD><D2BB><EFBFBD>ֽڽ<D6BD><DABD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ֽڵ<D6BD><DAB5><EFBFBD><EFBFBD>ݣ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ֽڵ<D6BD><DAB5><EFBFBD><EFBFBD>ݡ<EFBFBD>Ϊ<EFBFBD><CEAA>ʽ<EFBFBD><CABD><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>dz<EFBFBD><C7B3><EFBFBD><EFBFBD>ף<EFBFBD><D7A3><EFBFBD><EFBFBD>Ӽ<EFBFBD><D3BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><F0B5A5B8><EFBFBD><EFBFBD>Ӵ<EFBFBD><D3B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD>֣<EFBFBD><D6A3><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD>Լġ<F2B5A5B5><C4A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ǣ<EFBFBD><C7A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> I/O ͨ<><CDA8><EFBFBD>൱<EFBFBD><E0B5B1><EFBFBD><EFBFBD>
|
||||
|
||||
һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> I/O ϵͳ<CFB5>Կ<EFBFBD><D4BF><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>ÿһ<C3BF><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>в<EFBFBD><D0B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ݿ顣<DDBF><E9A1A3><EFBFBD>鴦<EFBFBD><E9B4A6><EFBFBD><EFBFBD><EFBFBD>ݱȰ<DDB1><C8B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>öࡣ<C3B6><E0A1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> I/O ȱ<><C8B1>һЩ<D2BB><D0A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> I/O <20><><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ժͼ<D4BA><CDBC><EFBFBD><EFBFBD>ԡ<EFBFBD>
|
||||
|
||||
I/O <20><><EFBFBD><EFBFBD> NIO <20>Ѿ<EFBFBD><D1BE>ܺõؼ<C3B5><D8BC><EFBFBD><EFBFBD>ˣ<EFBFBD>java.io.\* <20>Ѿ<EFBFBD><D1BE><EFBFBD> NIO Ϊ<><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD>ˣ<EFBFBD><CBA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NIO <20><>һЩ<D2BB><D0A9><EFBFBD>ԡ<EFBFBD><D4A1><EFBFBD><EFBFBD>磬 java.io.\* <20><><EFBFBD>е<EFBFBD>һЩ<D2BB><D0A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><D4BF><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD>д<EFBFBD><D0B4><EFBFBD>ݵķ<DDB5><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ü<EFBFBD>ʹ<EFBFBD>ڸ<EFBFBD><DAB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<CFB5>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶ<EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD>졣
|
||||
|
||||
## 2. ͨ<><CDA8><EFBFBD>뻺<EFBFBD><EBBBBA><EFBFBD><EFBFBD>
|
||||
|
||||
### 2.1 ͨ<><CDA8>
|
||||
|
||||
ͨ<EFBFBD><EFBFBD> Channel <20>Ƕ<EFBFBD>ԭ I/O <20><><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>⣬<EFBFBD><E2A3AC><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>
|
||||
|
||||
ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD>֮ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڣ<EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><EFBFBD><EFBFBD>(һ<><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> InputStream <20><><EFBFBD><EFBFBD> OutputStream <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)<29><> <20><>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>˫<EFBFBD><CBAB><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڶ<EFBFBD><DAB6><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD>ͬʱ<CDAC><CAB1><EFBFBD>ڶ<EFBFBD>д<EFBFBD><D0B4>
|
||||
|
||||
ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>
|
||||
|
||||
- FileChannel<65><6C><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC>ж<EFBFBD>д<EFBFBD><D0B4><EFBFBD>ݣ<EFBFBD>
|
||||
- DatagramChannel<65><6C>ͨ<EFBFBD><CDA8> UDP <20><>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>
|
||||
- SocketChannel<65><6C>ͨ<EFBFBD><CDA8> TCP <20><>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>
|
||||
- ServerSocketChannel<65><6C><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD>½<EFBFBD><C2BD><EFBFBD><EFBFBD><EFBFBD> TCP <20><><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD>ÿһ<C3BF><D2BB><EFBFBD>½<EFBFBD><C2BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD><D3B6>ᴴ<EFBFBD><E1B4B4>һ<EFBFBD><D2BB> SocketChannel<65><6C>
|
||||
|
||||
### 2.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷŵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>أ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݶ<EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>Ӷ<EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD>д<EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ⱦ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>飬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>顣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD>˶<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵĽṹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ը<EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD>Ķ<EFBFBD>/д<><D0B4><EFBFBD>̡<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>
|
||||
|
||||
- ByteBuffer
|
||||
- CharBuffer
|
||||
- ShortBuffer
|
||||
- IntBuffer
|
||||
- LongBuffer
|
||||
- FloatBuffer
|
||||
- DoubleBuffer
|
||||
|
||||
|
||||
## 3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD><EFBFBD>
|
||||
|
||||
- capacity<74><79><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
- position<6F><6E><EFBFBD><EFBFBD>ǰ<EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD>д<EFBFBD><D0B4><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD>
|
||||
- limit<69><74><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD>д<EFBFBD><D0B4><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
״̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸı<EFBFBD><EFBFBD><EFBFBD><EFBFBD>̣<EFBFBD>
|
||||
|
||||
1\. <20>½<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>СΪ 8 <20><><EFBFBD>ֽڵĻ<DAB5><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ position Ϊ 0<><30><EFBFBD><EFBFBD> limit == capacity == 9<><39>capacity <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı䣬<C4B1><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ۻ<EFBFBD><DBBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
2\. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD>ж<EFBFBD>ȡ 3 <20><><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD>뻺<EFBFBD><EBBBBA><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD>ʱ position <20>ƶ<EFBFBD><C6B6><EFBFBD>Ϊ 3<><33>limit <20><><EFBFBD>ֲ<EFBFBD><D6B2>䡣
|
||||
|
||||
|
||||
|
||||
3\. <20>ڽ<EFBFBD><DABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>֮ǰ<D6AE><C7B0><EFBFBD><EFBFBD>Ҫ<EFBFBD>ȵ<EFBFBD><C8B5><EFBFBD> flip() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> limit <20><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>ǰ position<6F><6E><EFBFBD><EFBFBD><EFBFBD><EFBFBD> position <20><><EFBFBD><EFBFBD>Ϊ 0<><30>
|
||||
|
||||
|
||||
|
||||
4\. <20>ӻ<EFBFBD><D3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ 4 <20><><EFBFBD>ֽڵ<D6BD><DAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD>ʱ position <20><>Ϊ 4<><34>
|
||||
|
||||
|
||||
|
||||
5\. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD> clear() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ position <20><> limit <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD>λ<EFBFBD>á<EFBFBD>
|
||||
|
||||
|
||||
|
||||
## 4. <20><>д<EFBFBD>ļ<EFBFBD>ʵ<EFBFBD><CAB5>
|
||||
|
||||
1\. ΪҪ<CEAA><D2AA>ȡ<EFBFBD><C8A1><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD> FileInputStream<61><6D>֮<EFBFBD><D6AE>ͨ<EFBFBD><CDA8> FileInputStream <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD> FileChannel<65><6C>
|
||||
|
||||
```java
|
||||
FileInputStream fin = new FileInputStream("readandshow.txt");
|
||||
FileChannel fic = fin.getChannel();
|
||||
```
|
||||
|
||||
2\. <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 1024 <20><> Buffer
|
||||
|
||||
```java
|
||||
ByteBuffer buffer = ByteBuffer.allocate(1024);
|
||||
```
|
||||
|
||||
3\. <20><><EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD><EFBFBD><EFBFBD> FileChannel д<>뵽 Buffer <20>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD>ݵĻ<DDB5><C4BB><EFBFBD> read() <20><><EFBFBD><EFBFBD><EFBFBD>᷵<EFBFBD><E1B7B5> -1
|
||||
|
||||
```java
|
||||
int r = fcin.read(buffer);
|
||||
if (r == -1) {
|
||||
break;
|
||||
}
|
||||
```
|
||||
|
||||
4\. ΪҪд<D2AA><D0B4><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD> FileOutputStream<61><6D>֮<EFBFBD><D6AE>ͨ<EFBFBD><CDA8> FileOutputStream <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD> FileChannel
|
||||
|
||||
```java
|
||||
FileOutputStream fout = new FileOutputStream("writesomebytes.txt");
|
||||
FileChannel foc = fout.getChannel();
|
||||
```
|
||||
|
||||
5\. <20><><EFBFBD><EFBFBD> flip() <20>л<EFBFBD><D0BB><EFBFBD>д
|
||||
|
||||
```java
|
||||
buffer.flip();
|
||||
```
|
||||
|
||||
6\. <20><> Buffer <20>е<EFBFBD><D0B5><EFBFBD><EFBFBD>ݶ<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD> FileChannel <20><>
|
||||
|
||||
```java
|
||||
foc.write(buffer);
|
||||
```
|
||||
|
||||
7\. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> clear() <20><><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
buffer.clear();
|
||||
```
|
||||
|
||||
## 5. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
Ӧ<EFBFBD><EFBFBD>ע<EFBFBD>⣬FileChannel <20><><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ<C4A3><CABD><EFBFBD><EFBFBD><D7BD><EFBFBD> Channel <20><><EFBFBD>ԡ<EFBFBD>
|
||||
|
||||
### 5.1 <20><><EFBFBD><EFBFBD>ʽ I/O
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ I/O <20>ڵ<EFBFBD><DAB5><EFBFBD> InputStream.read() <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>һֱ<D2BB>ȵ<EFBFBD><C8B5><EFBFBD><EFBFBD>ݵ<EFBFBD><DDB5><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>Ż᷵<C5BB>أ<EFBFBD><D8A3>ڵ<EFBFBD><DAB5><EFBFBD> ServerSocket.accept() <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>Ҳ<EFBFBD><D2B2>һֱ<D2BB><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>пͻ<D0BF><CDBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӲŻ᷵<C5BB>أ<EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӹ<EFBFBD><D3B9><EFBFBD><EFBFBD><EFBFBD><F3A3ACB7><EFBFBD><EFBFBD>˶<EFBFBD><CBB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>߳<EFBFBD>ȥ<EFBFBD><C8A5><EFBFBD><EFBFBD><EFBFBD>ÿͻ<C3BF><CDBB>˵<EFBFBD><CBB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
### 5.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ I/O
|
||||
|
||||
<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ר<EFBFBD>ŵ<EFBFBD><EFBFBD>߳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD> I/O <20>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>
|
||||
|
||||
<EFBFBD>¼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><EFBFBD>¼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD>߳<EFBFBD>ͨ<EFBFBD>ţ<EFBFBD><EFBFBD>߳<EFBFBD>֮<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD> wait()<29><>notify() <20>ȷ<EFBFBD>ʽͨ<CABD>ţ<EFBFBD><C5A3><EFBFBD>֤ÿ<D6A4><C3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ν<EFBFBD><CEBD><EFBFBD>߳<EFBFBD><DFB3>л<EFBFBD><D0BB><EFBFBD>
|
||||
|
||||
|
||||
|
||||
## 6. <20><EFBFBD><D7BD><EFBFBD>ʵ<EFBFBD><CAB5>
|
||||
|
||||
### 6.1 ServerSocketChannel
|
||||
|
||||
ÿһ<EFBFBD><EFBFBD><EFBFBD>˿ڶ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD> ServerSocketChannel <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӡ<EFBFBD>
|
||||
|
||||
```java
|
||||
ServerSocketChannel ssc = ServerSocketChannel.open();
|
||||
ssc.configureBlocking(false); // <20><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
ServerSocket ss = ssc.socket();
|
||||
InetSocketAddress address = new InetSocketAddress(ports[i]);
|
||||
ss.bind(address); // <20>˿ں<CBBF>
|
||||
```
|
||||
|
||||
### 6.2 Selectors
|
||||
|
||||
<EFBFBD>첽 I/O ͨ<><CDA8> Selector ע<><D7A2><EFBFBD><EFBFBD><EFBFBD>ض<EFBFBD> I/O <20>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD>Ȥ <20>D <20>ɶ<EFBFBD><C9B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵĵ<DDB5><C4B5><EFBFBD>µ<EFBFBD><C2B5><EFBFBD><D7BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵȵȣ<C8B5><C8A3>ڷ<EFBFBD><DAB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD>ʱ<EFBFBD><CAB1>ϵͳ<CFB5><CDB3><EFBFBD>ᷢ<EFBFBD><E1B7A2>֪ͨ<CDA8><D6AA>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> Selectors ֮<>Ϳ<F3A3ACBE><CDBF>ԶԲ<D4B6>ͬ<EFBFBD><CDAC>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> register() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>register() <20>ĵ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Selector<6F><72><EFBFBD>ڶ<EFBFBD><DAB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> OP_ACCEPT<50><54><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD> accept <20>¼<EFBFBD><C2BC><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD><C2B5><EFBFBD><EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD>
|
||||
|
||||
SelectionKey <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD>ڴ<EFBFBD> Selector <20>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD>ע<EFBFBD>ᡣ<EFBFBD><E1A1A3>ij<EFBFBD><C4B3> Selector ֪ͨ<CDA8><D6AA>ij<EFBFBD><C4B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD>ṩ<EFBFBD><E1B9A9>Ӧ<EFBFBD>ڸ<EFBFBD><DAB8>¼<EFBFBD><C2BC><EFBFBD> SelectionKey <20><><EFBFBD><EFBFBD><EFBFBD>еġ<D0B5>SelectionKey <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>ע<EFBFBD>ᡣ
|
||||
|
||||
```java
|
||||
Selector selector = Selector.open();
|
||||
SelectionKey key = ssc.register(selector, SelectionKey.OP_ACCEPT);
|
||||
```
|
||||
|
||||
### 6.3 <20><>ѭ<EFBFBD><D1AD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǵ<EFBFBD><EFBFBD><EFBFBD> Selector <20><> select() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ע<EFBFBD><D7A2><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>߸<EFBFBD><DFB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> select() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǵ<EFBFBD><EFBFBD><EFBFBD> Selector <20><> selectedKeys() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ط<EFBFBD><D8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD> SelectionKey <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> <20><><EFBFBD><EFBFBD> <20><>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SelectionKeys <20><><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD>ÿ<EFBFBD><C3BF> SelectionKey <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿһ<C3BF><D2BB> SelectionKey<65><79><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʲô I/O <20>¼<EFBFBD><C2BC><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD>Ӱ<EFBFBD><D3B0><EFBFBD><EFBFBD>Щ I/O <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
int num = selector.select();
|
||||
|
||||
Set selectedKeys = selector.selectedKeys();
|
||||
Iterator it = selectedKeys.iterator();
|
||||
|
||||
while (it.hasNext()) {
|
||||
SelectionKey key = (SelectionKey)it.next();
|
||||
// ... deal with I/O event ...
|
||||
}
|
||||
```
|
||||
|
||||
### 6.4 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǽ<EFBFBD>ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD> ServerSocketChannel<65><6C><EFBFBD><EFBFBD><EFBFBD>ҽ<EFBFBD>ע<EFBFBD><D7A2><EFBFBD><EFBFBD><EFBFBD>ǡ<EFBFBD><C7A1><EFBFBD><EFBFBD>ա<EFBFBD><D5A1>¼<EFBFBD><C2BC><EFBFBD>Ϊȷ<CEAA><C8B7><EFBFBD><EFBFBD>һ<EFBFBD>㣬<EFBFBD><E3A3AC><EFBFBD>Ƕ<EFBFBD> SelectionKey <20><><EFBFBD><EFBFBD> readyOps() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>鷢<EFBFBD><E9B7A2><EFBFBD><EFBFBD>ʲô<CAB2><C3B4><EFBFBD>͵<EFBFBD><CDB5>¼<EFBFBD><C2BC><EFBFBD>
|
||||
|
||||
```java
|
||||
if ((key.readyOps() & SelectionKey.OP_ACCEPT)
|
||||
== SelectionKey.OP_ACCEPT) {
|
||||
// Accept the new connection
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>Կ϶<EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD> readOps() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǹ<EFBFBD><C7B8>¼<EFBFBD><C2BC><EFBFBD><EFBFBD>µ<EFBFBD><C2B5><EFBFBD><EFBFBD>ӡ<EFBFBD>
|
||||
|
||||
### 6.5 <20><><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD><C2B5><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֪<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵȴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD>ؽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD> accept() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
ServerSocketChannel ssc = (ServerSocketChannel)key.channel();
|
||||
SocketChannel sc = ssc.accept();
|
||||
```
|
||||
|
||||
<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ǽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD> SocketChannel <20><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD><C4A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڽ<EFBFBD><DABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD>Ϊ<EFBFBD>˶<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><D7BD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>ݣ<EFBFBD><DDA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǻ<EFBFBD><C7BB><EFBFBD><EFBFBD>뽫 SocketChannel ע<>ᵽ Selector<6F>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE>
|
||||
|
||||
```java
|
||||
sc.configureBlocking( false );
|
||||
SelectionKey newKey = sc.register( selector, SelectionKey.OP_READ );
|
||||
```
|
||||
|
||||
ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD> register() <20><> OP_READ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SocketChannel ע<><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ȡ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ӡ<EFBFBD>
|
||||
|
||||
### 6.6 ɾ<><C9BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SelectionKey
|
||||
|
||||
<EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD> SelectionKey ֮<><D6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǽ<EFBFBD><C7BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><D4B7><EFBFBD><EFBFBD><EFBFBD>ѭ<EFBFBD><D1AD><EFBFBD>ˡ<EFBFBD><CBA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DZ<EFBFBD><C7B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƚ<EFBFBD><C8BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SelectionKey <20><>ѡ<EFBFBD><D1A1><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><C3B4><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD>֣<EFBFBD><D6A3><EFBFBD><EFBFBD>ᵼ<EFBFBD><E1B5BC><EFBFBD><EFBFBD><EFBFBD>dz<EFBFBD><C7B3><EFBFBD><EFBFBD>ٴδ<D9B4><CEB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǵ<EFBFBD><C7B5>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> remove() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SelectionKey<65><79>
|
||||
|
||||
```java
|
||||
it.remove();
|
||||
```
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܴ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<28><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> I/O <20>¼<EFBFBD>)<29>ˡ<EFBFBD>
|
||||
|
||||
### 6.7 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> I/O
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᴥ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD> I/O <20>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᵼ<EFBFBD><E1B5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѭ<EFBFBD><D1AD><EFBFBD>е<EFBFBD><D0B5><EFBFBD> Selector.select()<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>߶<EFBFBD><DFB6><EFBFBD> I/O <20>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>Σ<EFBFBD> SelectionKey <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ OP_READ <20>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE>
|
||||
|
||||
```java
|
||||
} else if ((key.readyOps() & SelectionKey.OP_READ)
|
||||
== SelectionKey.OP_READ) {
|
||||
// Read the data
|
||||
SocketChannel sc = (SocketChannel)key.channel();
|
||||
// ...
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
# <20>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
- Eckel B, <20><><EFBFBD>˶<EFBFBD> , <20><><EFBFBD><EFBFBD> , <20><> . Java <20><><EFBFBD><EFBFBD>˼<EFBFBD><CBBC> [M]. <20><>е<EFBFBD><D0B5>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD> , 2002.
|
||||
- [IBM: NIO <20><><EFBFBD><EFBFBD>](https://www.ibm.com/developerworks/cn/education/java/j-nio/j-nio.html)
|
||||
- [ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Java I/O <20>Ĺ<EFBFBD><C4B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ](https://www.ibm.com/developerworks/cn/java/j-lo-javaio/index.html)
|
||||
- [NIO <20>봫ͳ IO <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ](http://blog.csdn.net/shimiso/article/details/24990499)
|
||||
140
notes/Java 基础语法.md
Normal file
140
notes/Java 基础语法.md
Normal file
@ -0,0 +1,140 @@
|
||||
<!-- GFM-TOC -->
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [ final](#-final)
|
||||
* [<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD>](#<23><>ʼ<EFBFBD><CABC>˳<EFBFBD><CBB3>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȩ<EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>Ȩ<EFBFBD><C8A8>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [Set](#set)
|
||||
* [Queue](#queue)
|
||||
* [Map](#map)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD>쳣](#<23>쳣)
|
||||
* [<EFBFBD>ο<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD>)
|
||||
<!-- GFM-TOC -->
|
||||
|
||||
# <20><><EFBFBD><EFBFBD>
|
||||
|
||||
## final
|
||||
|
||||
**final <20><><EFBFBD><EFBFBD>**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DZ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܱ<EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ڻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>final ʹ<><CAB9>ֵ<EFBFBD><D6B5><EFBFBD>䣻<EFBFBD><E4A3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD><EFBFBD>final ʹ<><CAB9><EFBFBD>ò<EFBFBD><C3B2>䣬Ҳ<E4A3AC>Ͳ<EFBFBD><CDB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><F3A3ACB5>DZ<EFBFBD><C7B1><EFBFBD><EFBFBD>õĶ<C3B5><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><C7BF><EFBFBD><EFBFBD>ĵġ<C4B5>
|
||||
|
||||
**final <20><><EFBFBD><EFBFBD>**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>า<EFBFBD>ǡ<EFBFBD>
|
||||
|
||||
private <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD>ر<EFBFBD>ָ<EFBFBD><D6B8>Ϊ final<61><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><D0B6><EFBFBD><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD>е<EFBFBD>һ<EFBFBD><D2BB> private <20><><EFBFBD><EFBFBD>ǩ<EFBFBD><C7A9><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǹ<EFBFBD><C7B8>ǻ<EFBFBD><C7BB><EFBFBD><E0B7BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˡ<EFBFBD>
|
||||
|
||||
**final <20><>**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̳С<EFBFBD>
|
||||
|
||||
## <20><>ʼ<EFBFBD><CABC>˳<EFBFBD><CBB3>
|
||||
|
||||
static <20><><EFBFBD><EFBFBD><EFBFBD>ľ<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD>һ<EFBFBD>ݣ<EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>ʼ<EFBFBD><CABC>һ<EFBFBD>Σ<EFBFBD><CEA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵij<DDB5>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
public static String staticField = "<22><>̬<EFBFBD><CCAC><EFBFBD><EFBFBD>";
|
||||
```
|
||||
|
||||
static <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> static <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>һ<EFBFBD>Σ<EFBFBD><CEA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD>е<EFBFBD>˳<EFBFBD><CBB3><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
static {
|
||||
System.out.println("<22><>̬<EFBFBD><CCAC>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>");
|
||||
}
|
||||
```
|
||||
|
||||
<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD>ݺ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD>ھ<EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD>ݺ;<EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
public String field = "<22><><EFBFBD><EFBFBD>";
|
||||
```
|
||||
|
||||
```java
|
||||
{
|
||||
System.out.println("<22><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>");
|
||||
}
|
||||
```
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǹ<EFBFBD><EFBFBD>캯<EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD>г<EFBFBD>ʼ<EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
public InitialOrderTest()
|
||||
{
|
||||
System.out.println("<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>");
|
||||
}
|
||||
```
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ڼ̳е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>
|
||||
|
||||
1. <20><><EFBFBD>ࣨ<EFBFBD><E0A3A8>̬<EFBFBD><CCAC><EFBFBD>ݡ<EFBFBD><DDA1><EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD>飩
|
||||
2. <20><><EFBFBD>ࣨ<EFBFBD><E0A3A8>̬<EFBFBD><CCAC><EFBFBD>ݡ<EFBFBD><DDA1><EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD>飩
|
||||
3. <20><><EFBFBD>ࣨ<EFBFBD><E0A3A8><EFBFBD>ݡ<EFBFBD><DDA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>飩
|
||||
4. <20><><EFBFBD>ࣨ<EFBFBD><E0A3A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
5. <20><><EFBFBD>ࣨ<EFBFBD><E0A3A8><EFBFBD>ݡ<EFBFBD><DDA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>飩
|
||||
6. <20><><EFBFBD>ࣨ<EFBFBD><E0A3A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD>Ȩ<EFBFBD><C8A8>
|
||||
|
||||
Java <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȩ<EFBFBD><C8A8><EFBFBD><EFBFBD><EFBFBD>η<EFBFBD><CEB7><EFBFBD>private<74><65>protected <20>Լ<EFBFBD> public<69><63><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӷ<EFBFBD><D3B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>η<EFBFBD><CEB7><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD>ɼ<EFBFBD><C9BC><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еij<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>η<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD>ɼ<EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ó<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>ó<EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɼ<EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ഴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>൱<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾһ<EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˡ<EFBFBD>
|
||||
|
||||
protected <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>γ<EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>ʾ<EFBFBD>ڼ̳<DABC><CCB3><EFBFBD>ϵ<EFBFBD>г<EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɼ<EFBFBD><C9BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>η<EFBFBD><CEB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD>壬<EFBFBD><E5A3AC>Ϊ<EFBFBD><CEAA>û<EFBFBD>м̳<D0BC><CCB3><EFBFBD>ϵ<EFBFBD><CFB5>
|
||||
|
||||
# <20><><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> Collection <20><> Map <20><><EFBFBD>֣<EFBFBD>Collection <20>ְ<EFBFBD><D6B0><EFBFBD><EFBFBD><EFBFBD> List<73><74>Set <20>Լ<EFBFBD> Queue<75><65>
|
||||
|
||||
## Set
|
||||
|
||||
- HashSet<65><74>ʹ<EFBFBD><CAB9> Hash ʵ<>֣<EFBFBD>֧<EFBFBD>ֿ<EFBFBD><D6BF>ٲ<EFBFBD><D9B2>ң<EFBFBD><D2A3><EFBFBD><EFBFBD><EFBFBD>ʧȥ<CAA7><C8A5><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD>
|
||||
|
||||
- TreeSet<65><74>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD>ʵ<EFBFBD>֣<EFBFBD><D6A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><F2A3ACB5>Dz<EFBFBD><C7B2><EFBFBD>Ч<EFBFBD>ʲ<EFBFBD><CAB2><EFBFBD> HashSet<65><74>
|
||||
|
||||
- LinkedListHashSet<65><74><EFBFBD><EFBFBD><EFBFBD><EFBFBD> HashSet <20>IJ<EFBFBD><C4B2><EFBFBD>Ч<EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD>ڲ<EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ά<EFBFBD><CEAC>Ԫ<EFBFBD>صIJ<D8B5><C4B2><EFBFBD>˳<EFBFBD><CBB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˾<EFBFBD><CBBE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԡ<EFBFBD>
|
||||
|
||||
## Queue
|
||||
|
||||
ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>֣<EFBFBD>LinkedList <20><> PriorityQueue<75><65><EFBFBD><EFBFBD><EFBFBD><EFBFBD> LinkedList ֧<><D6A7>˫<EFBFBD><CBAB><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>
|
||||
|
||||
## Map
|
||||
|
||||
- HashMap<61><70>ʹ<EFBFBD><CAB9> Hash ʵ<><CAB5>
|
||||
|
||||
- LinkedHashMap<61><70><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><CBB3>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD>˳<EFBFBD><CBB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ã<EFBFBD>LRU<52><55>˳<EFBFBD><CBB3>
|
||||
|
||||
- TreeMap<61><70><EFBFBD><EFBFBD><EFBFBD>ں<EFBFBD><DABA><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5>
|
||||
|
||||
- ConcurrentHashMap<61><70><EFBFBD>̰߳<DFB3>ȫ Map<61><70><EFBFBD><EFBFBD><EFBFBD>漰ͬ<E6BCB0><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
# <20><><EFBFBD><EFBFBD>
|
||||
|
||||
ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD> **Class** <20><><EFBFBD><EFBFBD><F3A3ACB0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>йص<D0B9><D8B5><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD> .class <20>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD><EFBFBD> Class <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>൱<EFBFBD><EFBFBD> Class <20><><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC>ء<EFBFBD><D8A1><EFBFBD><EFBFBD>ڵ<EFBFBD>һ<EFBFBD><D2BB>ʹ<EFBFBD><CAB9>ʱ<EFBFBD>Ŷ<EFBFBD>̬<EFBFBD><CCAC><EFBFBD>ص<EFBFBD> JVM <20>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> Class.forName('com.mysql.jdbc.Driver.class') <20><><EFBFBD>ַ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC>أ<EFBFBD><D8A3>÷<EFBFBD><C3B7><EFBFBD><EFBFBD>᷵<EFBFBD><E1B7B5>һ<EFBFBD><D2BB> Class <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>ż<EFBFBD><EFBFBD>ؽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>ڸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> .class <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>Լ<EFBFBD><D4BC>ؽ<EFBFBD><D8BD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
Class <20><> java.lang.reflect һ<><D2BB><EFBFBD>Է<EFBFBD><D4B7><EFBFBD><EFBFBD>ṩ<EFBFBD><E1B9A9>֧<EFBFBD>֣<EFBFBD>java.lang.reflect <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> **Field**<EFBFBD><EFBFBD>**Method** <20>Լ<EFBFBD> **Constructor** <20>ࡣ<EFBFBD><E0A1A3><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> get() <20><> set() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD> Field <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶΣ<D6B6><CEA3><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> invoke() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Method <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Constructor <20><><EFBFBD><EFBFBD><EFBFBD>µĶ<C2B5><C4B6><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
IDE ʹ<>÷<EFBFBD><C3B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƻ<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶΡ<D6B6><CEA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><CDB9>캯<EFBFBD><ECBAAF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD>г<EFBFBD><D0B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>ѡ<EFBFBD><D1A1><EFBFBD><EFBFBD>
|
||||
|
||||
# <20>쳣
|
||||
|
||||
Throwable <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD>κο<CEBA><CEBF><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>쳣<EFBFBD>׳<EFBFBD><D7B3><EFBFBD><EFBFBD>࣬<EFBFBD><E0A3AC>Ϊ<EFBFBD><CEAA><EFBFBD>֣<EFBFBD>**Error** <20><> **Exception**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Error <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>ʱϵͳ<CFB5><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
Exception <20><>Ϊ<EFBFBD><CEAA><EFBFBD>֣<EFBFBD>**<2A>ܼ<EFBFBD><DCBC>쳣** <20><> **<EFBFBD><EFBFBD><EFBFBD>ܼ<EFBFBD><EFBFBD>쳣**<2A><><EFBFBD>ܼ<EFBFBD><DCBC>쳣<EFBFBD><ECB3A3>Ҫ<EFBFBD><D2AA> try...catch... <20><><EFBFBD>䲶<EFBFBD><EFBFBD><F1B2A2BD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҿ<EFBFBD><D2BF>Դ<EFBFBD><D4B4>쳣<EFBFBD>лָ<D0BB><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܼ<EFBFBD><DCBC>쳣<EFBFBD>dz<EFBFBD><C7B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Arithmetic Exception<6F><6E><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><DEB7>ָ<EFBFBD><D6B8><EFBFBD>
|
||||
|
||||
|
||||
|
||||
# <20>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
- Eckel B, <20><><EFBFBD>˶<EFBFBD> , <20><><EFBFBD><EFBFBD> , <20><> . Java <20><><EFBFBD><EFBFBD>˼<EFBFBD><CBBC> [M]. <20><>е<EFBFBD><D0B5>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD> , 2002.
|
||||
- [Java <20><><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>˳<EFBFBD><CBB3> ](https://segmentfault.com/a/1190000004527951)
|
||||
4894
notes/Leetcode 题解.md
Normal file
4894
notes/Leetcode 题解.md
Normal file
File diff suppressed because it is too large
Load Diff
1071
notes/Linux.md
Normal file
1071
notes/Linux.md
Normal file
File diff suppressed because it is too large
Load Diff
444
notes/MySQL.md
Normal file
444
notes/MySQL.md
Normal file
@ -0,0 +1,444 @@
|
||||
<!-- GFM-TOC -->
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [1. ԭ<><D4AD><EFBFBD><EFBFBD>](#1-ԭ<><D4AD><EFBFBD><EFBFBD>)
|
||||
* [2. һ<><D2BB><EFBFBD><EFBFBD>](#2-һ<><D2BB><EFBFBD><EFBFBD>)
|
||||
* [3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#3-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [4. <20>־<EFBFBD><D6BE><EFBFBD>](#4-<2D>־<EFBFBD><D6BE><EFBFBD>)
|
||||
* [<EFBFBD>洢<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD>)
|
||||
* [1. InnoDB](#1-innodb)
|
||||
* [2. MyISAM](#2-myisam)
|
||||
* [3. InnoDB <20><> MyISAM <20>ıȽ<C4B1>](#3-innodb-<2D><>-myisam-<2D>ıȽ<C4B1>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [1. <20><><EFBFBD><EFBFBD>](#1-<2D><><EFBFBD><EFBFBD>)
|
||||
* [2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#2-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [3. <20>ַ<EFBFBD><D6B7><EFBFBD>](#3-<2D>ַ<EFBFBD><D6B7><EFBFBD>)
|
||||
* [4. ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#4-ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#1-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [1.1 B-Tree <20><><EFBFBD><EFBFBD>](#11-b-tree-<2D><><EFBFBD><EFBFBD>)
|
||||
* [1.2 <20><>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD>](#12-<2D><>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD>)
|
||||
* [1.3. <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>R-Tree<65><65>](#13-<2D>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>r-tree<65><65>)
|
||||
* [1.4 ȫ<><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#14-ȫ<><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD>](#2-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD>)
|
||||
* [3. <20><><EFBFBD><EFBFBD><EFBFBD>Ż<EFBFBD>](#3-<2D><><EFBFBD><EFBFBD><EFBFBD>Ż<EFBFBD>)
|
||||
* [3.1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#31-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [3.2 ǰ<C7B0><D7BA><EFBFBD><EFBFBD>](#32-ǰ<C7B0><D7BA><EFBFBD><EFBFBD>)
|
||||
* [3.3 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#33-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [3.4 <20><><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>˳<EFBFBD><CBB3>](#34-<2D><><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>˳<EFBFBD><CBB3>)
|
||||
* [3.5 <20>۴<EFBFBD><DBB4><EFBFBD><EFBFBD><EFBFBD>](#35-<2D>۴<EFBFBD><DBB4><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [3.6 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#36-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [4. B-Tree <20><> B+Tree ԭ<><D4AD>](#4-b-tree-<2D><>-b+tree-ԭ<><D4AD>)
|
||||
* [4. 1 B-Tree](#4-1-b-tree)
|
||||
* [4.2 B+Tree](#42-b+tree)
|
||||
* [4.3 <20><><EFBFBD><EFBFBD>˳<EFBFBD><CBB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD> B+Tree](#43-<2D><><EFBFBD><EFBFBD>˳<EFBFBD><CBB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>-b+tree)
|
||||
* [4.4 Ϊʲôʹ<C3B4><CAB9> B-Tree <20><> B+Tree](#44-Ϊʲôʹ<C3B4><CAB9>-b-tree-<2D><>-b+tree)
|
||||
* [<EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ż<EFBFBD>](#<23><>ѯ<EFBFBD><D1AF><EFBFBD><EFBFBD><EFBFBD>Ż<EFBFBD>)
|
||||
* [1. Explain](#1-explain)
|
||||
* [2. <20><><EFBFBD>ٷ<EFBFBD><D9B7>ص<EFBFBD><D8B5><EFBFBD>](#2-<2D><><EFBFBD>ٷ<EFBFBD><D9B7>ص<EFBFBD><D8B5><EFBFBD>)
|
||||
* [3. <20><><EFBFBD>ٷ<EFBFBD><D9B7>ص<EFBFBD><D8B5><EFBFBD>](#3-<2D><><EFBFBD>ٷ<EFBFBD><D9B7>ص<EFBFBD><D8B5><EFBFBD>)
|
||||
* [4. <20><><EFBFBD>ִ<EFBFBD><D6B4><EFBFBD> DELETE <20><> INSERT <20><><EFBFBD><EFBFBD>](#4-<2D><><EFBFBD>ִ<EFBFBD><D6B4><EFBFBD>-delete-<2D><>-insert-<2D><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD>ֿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>](#<23>ֿ<EFBFBD><D6BF><EFBFBD><EFBFBD>ֱ<EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD>ƺ<EFBFBD><EFBFBD>ϻָ<EFBFBD>](#<23><><EFBFBD><EFBFBD>ת<EFBFBD>ƺ<C6BA><CDB9>ϻָ<CFBB>)
|
||||
* [1. <20><><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>](#1-<2D><><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>)
|
||||
* [2. <20><><EFBFBD>ϻָ<CFBB>](#2-<2D><><EFBFBD>ϻָ<CFBB>)
|
||||
* [<EFBFBD>ο<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD>)
|
||||
<!-- GFM-TOC -->
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## 1. ԭ<><D4AD><EFBFBD><EFBFBD>
|
||||
|
||||
Ҫô<EFBFBD><EFBFBD>ִ<EFBFBD>У<EFBFBD>Ҫô<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>С<EFBFBD>
|
||||
|
||||
## 2. һ<><D2BB><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD>
|
||||
|
||||
## 3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӱ<EFBFBD>졣
|
||||
|
||||
## 4. <20>־<EFBFBD><D6BE><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>ʹϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>еĽ<EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD>ܶ<EFBFBD>ʧ<EFBFBD><EFBFBD>
|
||||
|
||||
# <20>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD>
|
||||
|
||||
## 1. InnoDB
|
||||
|
||||
InnoDB <20><> MySQL <20><>Ĭ<EFBFBD><C4AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>棬ֻ<E6A3AC><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ InnoDB <20><>֧<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>ſ<EFBFBD><C5BF><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><E6B4A2><EFBFBD>档
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> MVCC <20><>֧<EFBFBD>ָ߲<D6B8><DFB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8>뼶<EFBFBD><EBBCB6><EFBFBD><EFBFBD>Ĭ<EFBFBD>ϼ<EFBFBD><CFBC><EFBFBD><EFBFBD>ǿ<EFBFBD><C7BF>ظ<EFBFBD><D8B8><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ǻ<EFBFBD><EFBFBD>ھ۴<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>кܸߵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˺ܶ<EFBFBD><EFBFBD>Ż<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӵ<EFBFBD><EFBFBD>̶<EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>õĿ<EFBFBD>Ԥ<EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD> hash <20><><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC>ٶ<EFBFBD><D9B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD>ٲ<EFBFBD><D9B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><C4B2>뻺<EFBFBD><EBBBBA><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD>
|
||||
|
||||
ͨ<EFBFBD><EFBFBD>һЩ<EFBFBD><EFBFBD><EFBFBD>ƺ<EFBFBD><EFBFBD><EFBFBD>֧<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȱ<EFBFBD><EFBFBD>ݡ<EFBFBD>
|
||||
|
||||
## 2. MyISAM
|
||||
|
||||
MyISAM <20>ṩ<EFBFBD>˴<EFBFBD><CBB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD><EFBFBD>ռ亯<D5BC><E4BAAF><EFBFBD><EFBFBD>GIS<49><53><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD> MyISAM <20><>֧<EFBFBD><D6A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><D0BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ұ<EFBFBD><D2B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><DEB7><EFBFBD>ȫ<EFBFBD>ָ<EFBFBD><D6B8><EFBFBD>
|
||||
|
||||
ֻ<EFBFBD>ܶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ű<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD>ִ<EFBFBD>м<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܵ<EFBFBD><EFBFBD><EFBFBD>һЩ<EFBFBD><EFBFBD><EFBFBD>ݶ<EFBFBD>ʧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿdz<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD>߾<EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> DELAY_KEY_WRITE ѡ<><EFBFBD><EEA3AC>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<DEB8><C4B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD>̣<EFBFBD><CCA3><EFBFBD><EFBFBD>ǻ<EFBFBD>д<EFBFBD><D0B4><EFBFBD>ڴ<EFBFBD><DAB4>еļ<D0B5><C4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߹رձ<D8B1><D5B1><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>ŻὫ<C5BB><E1BDAB>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD>̡<EFBFBD><CCA1><EFBFBD><EFBFBD>ַ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD>ܣ<EFBFBD><DCA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><F0BBB5A3><EFBFBD>Ҫִ<D2AA><D6B4><EFBFBD><EFBFBD><DEB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ժ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD>ʺϲ<EFBFBD><EFBFBD><EFBFBD> MyISAM ѹ<><D1B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>߱<EFBFBD><EFBFBD>Ƚ<EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD> MyISAM<41><4D>
|
||||
|
||||
MyISAM <20><><EFBFBD>Ƽ<C6BC><F2B5A5A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Խ<EFBFBD><D4BD>ܸ<EFBFBD>ʽ<EFBFBD>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ijЩ<C4B3><D0A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܺܺá<DCBA>
|
||||
|
||||
## 3. InnoDB <20><> MyISAM <20>ıȽ<C4B1>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
InnoDB <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵ġ<CDB5>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
InnoDB ֧<><D6A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȱ<EFBFBD><C8B1>ݡ<EFBFBD>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>**
|
||||
|
||||
MyISAM <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<F0BBB5B5><C4B8>ʱ<EFBFBD> InnoDB <20>ߺܶ࣬<DCB6><E0A3AC><EFBFBD>һָ<D2BB><D6B8><EFBFBD><EFBFBD>ٶ<EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
MyISAM ֻ֧<D6BB>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> InnoDB <20><>֧<EFBFBD><D6A7><EFBFBD>м<EFBFBD><D0BC><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
MyISAM ֧<><D6A7>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## 1. <20><><EFBFBD><EFBFBD>
|
||||
|
||||
TINYINT, SMALLINT, MEDIUMINT, INT, BIGINT <20>ֱ<EFBFBD>ʹ<EFBFBD><CAB9> 8, 16, 24, 64 λ<>洢<EFBFBD>ռ䣬һ<E4A3AC><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԽС<D4BD><D0A1><EFBFBD><EFBFBD>Խ<EFBFBD>á<EFBFBD>
|
||||
|
||||
INT(11) <20>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>ǹ涨<C7B9>˽<EFBFBD><CBBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD>ַ<EFBFBD><D6B7>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ洢<DAB4>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD>
|
||||
|
||||
## 2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
FLOAT <20><> DOUBLE Ϊ<><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>DECIMAL Ϊ<>߾<EFBFBD><DFBE><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD>CPU ԭ<><D4AD>֧<EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㣬<EFBFBD><E3A3AC><EFBFBD>Dz<EFBFBD>֧<EFBFBD><D6A7> DECIMAl <20><><EFBFBD>͵ļ<CDB5><C4BC>㣬<EFBFBD><E3A3AC><EFBFBD><EFBFBD> DECIMAL <20>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD>ȸ<EFBFBD><C8B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ߵĴ<DFB5><C4B4>ۡ<EFBFBD>
|
||||
|
||||
FLOAT<EFBFBD><EFBFBD>DOUBLE <20><> DECIMAL <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD>п<EFBFBD><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> DECIMAL(18, 9) <20><>ʾ<EFBFBD>ܹ<EFBFBD> 18 λ<><CEBB>ȡ 9 λ<>洢С<E6B4A2><D0A1><EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD>ʣ<EFBFBD><CAA3> 9 λ<>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֡<EFBFBD>
|
||||
|
||||
## 3. <20>ַ<EFBFBD><D6B7><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD> CHAR <20><> VARCHAR <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD>Ƕ<EFBFBD><C7B6><EFBFBD><EFBFBD>ģ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD>DZ䳤<C7B1>ġ<EFBFBD>
|
||||
|
||||
VARCHAR <20><><EFBFBD>ֱ䳤<D6B1><E4B3A4><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD>ʡ<EFBFBD>ռ䣬<D5BC><E4A3AC>Ϊֻ<CEAA><D6BB>Ҫ<EFBFBD>洢<EFBFBD><E6B4A2>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD><DDA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4> UPDATE ʱ<><CAB1><EFBFBD>ܻ<EFBFBD>ʹ<EFBFBD>б<EFBFBD><D0B1>ñ<EFBFBD>ԭ<EFBFBD><D4AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ҳ<EFBFBD><D2B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɵĴ<C9B5>Сʱ<D0A1><CAB1><EFBFBD><EFBFBD>Ҫִ<D2AA>ж<EFBFBD><D0B6><EFBFBD><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD>MyISAM <20>Ὣ<EFBFBD>в<EFBFBD><D0B2>ɲ<EFBFBD>ͬ<EFBFBD><CDAC>Ƭ<EFBFBD>δ洢<CEB4><E6B4A2><EFBFBD><EFBFBD> InnoDB <20><><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>ҳ<EFBFBD><D2B3>ʹ<EFBFBD>зŽ<D0B7>ҳ<EFBFBD>ڡ<EFBFBD>
|
||||
|
||||
VARCHAR <20>ᱣ<EFBFBD><E1B1A3><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>ĩβ<C4A9>Ŀո<D5B8> CHAR <20><>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD>
|
||||
|
||||
## 4. ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
MySQL <20>ṩ<EFBFBD><E1B9A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>DATATIME <20><> TIMESTAMP<4D><50>
|
||||
|
||||
**DATATIME**
|
||||
|
||||
<EFBFBD>ܹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1001 <20>굽 9999 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ں<EFBFBD>ʱ<EFBFBD>䣬<EFBFBD><E4A3AC><EFBFBD><EFBFBD>Ϊ<EFBFBD>룬ʹ<EBA3AC><CAB9> 8 <20>ֽڵĴ洢<C4B4>ռ䡣
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ء<EFBFBD>
|
||||
|
||||
Ĭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>MySQL <20><>һ<EFBFBD>ֿ<EFBFBD><D6BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD><C4A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD>ʽ<EFBFBD><CABD>ʾ DATATIME ֵ<><D6B5><EFBFBD><EFBFBD><EFBFBD>硰2008-01016 22:37:08<30><38><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ANSI <20><><EFBFBD><D7BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ں<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**TIMESTAMP**
|
||||
|
||||
<EFBFBD><EFBFBD> UNIX ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1970 <20><> 1 <20><> 1 <20><><EFBFBD><EFBFBD>ҹ<EFBFBD><D2B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>䣩<EFBFBD><E4A3A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> 4 <20><><EFBFBD>ֽڣ<D6BD>ֻ<EFBFBD>ܱ<EFBFBD>ʾ<EFBFBD><CABE> 1970 <20><> <20><> 2038 <20>ꡣ
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>йء<EFBFBD>
|
||||
|
||||
MySQL <20>ṩ<EFBFBD><E1B9A9> FROM_UNIXTIME() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Unxi ʱ<><CAB1><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>Ϊ<EFBFBD><CEAA><EFBFBD>ڣ<EFBFBD><DAA3><EFBFBD><EFBFBD>ṩ<EFBFBD><E1B9A9> UNIX_TIMESTAMP() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>Ϊ Unix ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
Ĭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱû<EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD> TIMESTAMP <20>е<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD>Ὣ<EFBFBD><E1BDAB><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>ǰʱ<C7B0>䡣
|
||||
|
||||
Ӧ<EFBFBD>þ<EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD> TIMESTAMP<4D><50><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD> DATETIME <20>ռ<EFBFBD>Ч<EFBFBD>ʸ<EFBFBD><CAB8>ߡ<EFBFBD>
|
||||
|
||||
# <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ洢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ֵģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ֵģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD>ͬ<EFBFBD>洢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͺ<EFBFBD>ʵ<EFBFBD>֡<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ڷdz<EFBFBD>С<EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD>ȫ<EFBFBD><EFBFBD>ɨ<EFBFBD><EFBFBD><EFBFBD>Ƚ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷdz<EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƕ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ش<EFBFBD><EFBFBD>͵ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><EFBFBD>۽<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>õ<EFBFBD>һ<EFBFBD>ּ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֳ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><EFBFBD>ƥ<EFBFBD>䣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## 1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 1.1 B-Tree <20><><EFBFBD><EFBFBD>
|
||||
|
||||
B-Tree <20><><EFBFBD><EFBFBD><EFBFBD>Ǵ<EFBFBD><C7B4><EFBFBD><EFBFBD><EFBFBD> MySQL <20>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD><C4AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD>ɨ<EFBFBD>裬ֻ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˲<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶȿ<EFBFBD><EFBFBD>ܶࡣ
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>ɼ<EFBFBD><EFBFBD><EFBFBD>B-Tree <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5>Χ<EFBFBD>ͼ<EFBFBD>ǰ<C7B0><D7BA><EFBFBD>ң<EFBFBD><D2A3><EFBFBD><EFBFBD>м<EFBFBD>ǰ<C7B0><D7BA><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<C7B0><D7BA><EFBFBD>ҡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD>ң<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD>顣
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>˳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD><EFBFBD>ң<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 1.2 <20><>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ڹ<EFBFBD>ϣ<EFBFBD><EFBFBD>ʵ<EFBFBD>֣<EFBFBD><EFBFBD>ŵ<EFBFBD><EFBFBD>Dz<EFBFBD><EFBFBD>ҷdz<EFBFBD><EFBFBD>졣
|
||||
|
||||
<EFBFBD><EFBFBD> MySQL <20><>ֻ<EFBFBD><D6BB> Memory <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ֧<CABD>ֹ<EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
InnoDB <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9>ܽС<DCBD><D0A1><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><C4B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5>ʹ<EFBFBD>õķdz<C4B7>Ƶ<EFBFBD><C6B5>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD> B-Tree <20><><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD>ٴ<EFBFBD><D9B4><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> B-Tree <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һЩ<D2BB>ŵ㣬<C5B5><E3A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٵĹ<D9B5>ϣ<EFBFBD><CFA3><EFBFBD>ҡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><EFBFBD><EFBFBD>ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϣֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>룬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD>ֶ<EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>е<EFBFBD><EFBFBD>е<EFBFBD><EFBFBD>ٶȺܿ죬<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӱ<EFBFBD>첢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ֧<EFBFBD>־<EFBFBD>ȷ<EFBFBD><EFBFBD><EFBFBD>ң<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD>ֲ<EFBFBD><EFBFBD>Һͷ<EFBFBD>Χ<EFBFBD><EFBFBD><EFBFBD>ң<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϣ<EFBFBD><EFBFBD>ͻ<EFBFBD>ܶ࣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶȻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ú<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 1.3. <20>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>R-Tree<65><65>
|
||||
|
||||
MyISAM <20>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD>֧<EFBFBD>ֿռ<D6BF><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴ洢<DDB4><E6B4A2>
|
||||
|
||||
<EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ά<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ά<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD>ѯ<EFBFBD><EFBFBD>
|
||||
|
||||
### 1.4 ȫ<><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
MyISAM <20>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD>֧<EFBFBD><D6A7>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD>ı<EFBFBD><C4B1>еĹؼ<C4B9><D8BC>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӱȽ<D3B1><C8BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>ֵ<EFBFBD><D6B5>
|
||||
|
||||
ʹ<EFBFBD><EFBFBD> MATCH AGAINST<53><54><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8> WHERE<52><45>
|
||||
|
||||
## 2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD>
|
||||
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˷<EFBFBD><CBB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫɨ<D2AA><C9A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CDB4><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>
|
||||
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> I/O <20><>Ϊ˳<CEAA><CBB3> I/O<><4F>
|
||||
|
||||
## 3. <20><><EFBFBD><EFBFBD><EFBFBD>Ż<EFBFBD>
|
||||
|
||||
### 3.1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD>ڽ<EFBFBD><EFBFBD>в<EFBFBD>ѯʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD><EFBFBD><EFBFBD><EFBFBD>DZ<EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD> actor_id <20>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```sql
|
||||
SELECT actor_id FROM sakila.actor WHERE actor_id + 1 = 5;
|
||||
```
|
||||
|
||||
### 3.2 ǰ<C7B0><D7BA><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> BLOB<4F><42>TEXT <20><> VARCHAR <20><><EFBFBD>͵<EFBFBD><CDB5>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>ǰ<C7B0><D7BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD>ѡȡ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> **<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>** <20><>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD><D8B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>ͼ<EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>ֵ<EFBFBD><D6B5>ѡ<EFBFBD><D1A1><EFBFBD><EFBFBD>Խ<EFBFBD>ߣ<EFBFBD><DFA3><EFBFBD>ѯЧ<D1AF><D0A7>ҲԽ<D2B2>ߡ<EFBFBD><DFA1><EFBFBD><EFBFBD><EFBFBD>ֵΪ 1 <20><><EFBFBD><EFBFBD>ʱÿ<CAB1><C3BF><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD>Ψһ<CEA8><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>
|
||||
|
||||
### 3.3 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫʹ<EFBFBD>ö<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD>ѯʱ<EFBFBD><EFBFBD>ʹ<EFBFBD>ö<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ö<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܸ<EFBFBD><EFBFBD>á<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ð<EFBFBD> actor_id <20><> file_id <20><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```sql
|
||||
SELECT file_id, actor_ id FROM sakila.film_actor
|
||||
WhERE actor_id = 1 OR film_id = 1;
|
||||
```
|
||||
|
||||
### 3.4 <20><><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>˳<EFBFBD><CBB3>
|
||||
|
||||
<EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>з<EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD>棬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> customer_id <20><>ѡ<EFBFBD><D1A1><EFBFBD>Ա<EFBFBD> staff_id <20><><EFBFBD>ߣ<EFBFBD><DFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ð<EFBFBD> customer_id <20>з<EFBFBD><D0B7>ڶ<EFBFBD><DAB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD>档
|
||||
|
||||
```sql
|
||||
SELECT COUNT(DISTINCT staff_id)/COUNT(*) AS staff_id_selectivity,
|
||||
COUNT(DISTINCT customer_id)/COUNT(*) AS customer_id_selectivity,
|
||||
COUNT(*)
|
||||
FROM payment;
|
||||
```
|
||||
|
||||
```html
|
||||
staff_id_selectivity: 0.0001
|
||||
customer_id_selectivity: 0.0373
|
||||
COUNT(*): 16049
|
||||
```
|
||||
|
||||
### 3.5 <20>۴<EFBFBD><DBB4><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD>۴<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴ洢<EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>۴ء<EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>к<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵļ<EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD>ܵش洢<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>InnoDB <20>ľ۴<C4BE><DBB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD> B-Tree <20><>Ҷ<EFBFBD><D2B6>ҳ<EFBFBD>С<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD>ĵط<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>۴<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**<EFBFBD>ŵ<EFBFBD>**
|
||||
|
||||
1. <20><><EFBFBD><EFBFBD><D4B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>𣬼<EFBFBD><F0A3ACBC><EFBFBD> I/O <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
2. <20><>Ϊ<EFBFBD><CEAA><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD><EFBFBD> B-Tree <20>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݷ<EFBFBD><DDB7>ʸ<EFBFBD><CAB8>졣
|
||||
|
||||
**ȱ<><C8B1>**
|
||||
|
||||
1. <20>۴<EFBFBD><DBB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><DEB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> I/O <20>ܼ<EFBFBD><DCBC><EFBFBD>Ӧ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD>ܣ<EFBFBD><DCA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ棬<DAB4><E6A3AC>û<EFBFBD><C3BB>Ҫ<EFBFBD>þ۴<C3BE><DBB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
2. <20><><EFBFBD><EFBFBD><EFBFBD>ٶ<EFBFBD><D9B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD>˳<EFBFBD><EFBFBD><F2A3ACB0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><CBB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD>
|
||||
3. <20><><EFBFBD>²<EFBFBD><C2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ۺܸߣ<DCB8><DFA3><EFBFBD>Ϊÿ<CEAA><C3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD><C2B5>ж<EFBFBD><D0B6><EFBFBD><EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD>µ<EFBFBD>λ<EFBFBD>á<EFBFBD>
|
||||
4. <20><><EFBFBD><EFBFBD><EFBFBD>뵽ij<EBB5BD><C4B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD>У<EFBFBD><D0A3>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD><EFBFBD>Ὣ<EFBFBD><E1BDAB>ҳ<EFBFBD><D2B3><EFBFBD>ѳ<EFBFBD><D1B3><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD><D2B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɸ<EFBFBD><C9B8>У<EFBFBD>ҳ<EFBFBD><D2B3><EFBFBD>ѻᵼ<D1BB>±<EFBFBD>ռ<EFBFBD>ø<EFBFBD><C3B8><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4>̿ռ䡣
|
||||
5. <20><><EFBFBD><EFBFBD><EFBFBD>бȽ<D0B1>ϡ<EFBFBD>裬<EFBFBD><E8A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD><D2B3><EFBFBD>ѵ<EFBFBD><D1B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴ洢<DDB4><E6B4A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>۴<EFBFBD><DBB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܵ<EFBFBD><DCB5><EFBFBD>ȫ<EFBFBD><C8AB>ɨ<EFBFBD><C9A8><EFBFBD>ٶȱ<D9B6><C8B1><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 3.6 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD>ֶε<EFBFBD>ֵ<EFBFBD><EFBFBD>
|
||||
|
||||
## 4. B-Tree <20><> B+Tree ԭ<><D4AD>
|
||||
|
||||
### 4. 1 B-Tree
|
||||
|
||||
|
||||
|
||||
Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> B-Tree<65><65><EFBFBD><EFBFBD><EFBFBD>ȶ<EFBFBD><C8B6><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ݼ<EFBFBD>¼Ϊһ<CEAA><D2BB><EFBFBD><EFBFBD>Ԫ<EFBFBD><D4AA> [key, data]<5D><>key Ϊ<><CEAA>¼<EFBFBD>ļ<EFBFBD><C4BC><EFBFBD>data Ϊ<><CEAA><EFBFBD>ݼ<EFBFBD>¼<EFBFBD><C2BC> key <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>
|
||||
|
||||
B-Tree <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݽṹ<DDBD><E1B9B9>
|
||||
|
||||
- <20><><EFBFBD><EFBFBD>Ҷ<EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD>˵ B-Tree <20><>ƽ<EFBFBD><C6BD><EFBFBD>ģ<EFBFBD>
|
||||
- һ<><D2BB><EFBFBD>ڵ<EFBFBD><DAB5>е<EFBFBD> key <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҷǵݼ<C7B5><DDBC><EFBFBD><EFBFBD>У<EFBFBD>
|
||||
- <20><><EFBFBD><EFBFBD>ij<EFBFBD><C4B3>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> key <20>ֱ<EFBFBD><D6B1><EFBFBD> key<sub>i</sub> <20><> key<sub>i+1</sub><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD>Ϊ null<6C><6C><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>ָ<EFBFBD><D6B8><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> key <20><><EFBFBD><EFBFBD> key<sub>i</sub> <20><>С<EFBFBD><D0A1> key<sub>i+1</sub><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> B-Tree <20>а<EFBFBD> key <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><DDB5>㷨<EFBFBD>dz<EFBFBD>ֱ<EFBFBD>ۣ<EFBFBD><DBA3><EFBFBD><EFBFBD>ȴӸ<C8B4><D3B8>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD>ж<EFBFBD><D0B6>ֲ<EFBFBD><D6B2>ң<EFBFBD><D2A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><D2B5>ض<F2B7B5BB>Ӧ<EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD> data<74><61><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>ָ<EFBFBD><D6B8><EFBFBD>Ľڵ<C4BD><DAB5>ݹ<EFBFBD><DDB9><EFBFBD><EFBFBD>в<EFBFBD><D0B2>ң<EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD>ҵ<EFBFBD><D2B5>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD>ҵ<EFBFBD> null ָ<>룬ǰ<EBA3AC>߲<EFBFBD><DFB2>ҳɹ<D2B3><C9B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߲<EFBFBD><DFB2><EFBFBD>ʧ<EFBFBD>ܡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݼ<EFBFBD>¼<EFBFBD><EFBFBD><EFBFBD>ƻ<EFBFBD> B-Tree <20><><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD>ɾ<EFBFBD><C9BE>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><D1A1>ϲ<EFBFBD><CFB2><EFBFBD>ת<EFBFBD>ƵȲ<C6B5><C8B2><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD> B-Tree <20><><EFBFBD>ʡ<EFBFBD>
|
||||
|
||||
### 4.2 B+Tree
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD> B-Tree <20><><EFBFBD>ȣ<EFBFBD>B+Tree <20><><EFBFBD><EFBFBD><EFBFBD>²<EFBFBD>ͬ<EFBFBD>㣺
|
||||
|
||||
- ÿ<><C3BF><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 2d <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 2d+1<><31>
|
||||
- <20>ڽڵ㲻<DAB5>洢 data<74><61>ֻ<EFBFBD>洢 key<65><79>Ҷ<EFBFBD>ӽڵ㲻<DAB5>洢ָ<E6B4A2>롣
|
||||
|
||||
### 4.3 <20><><EFBFBD><EFBFBD>˳<EFBFBD><CBB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD> B+Tree
|
||||
|
||||
|
||||
|
||||
һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ϵͳ<EFBFBD><EFBFBD>ʹ<EFBFBD>õ<EFBFBD> B+Tree <20>ṹ<EFBFBD><E1B9B9><EFBFBD>ھ<EFBFBD><DABE><EFBFBD> B+Tree <20><><EFBFBD><EFBFBD><EFBFBD>Ͻ<EFBFBD><CFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ż<EFBFBD><C5BB><EFBFBD><EFBFBD><EFBFBD>Ҷ<EFBFBD>ӽڵ<D3BD><DAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><CBB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ż<EFBFBD><C5BB><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>ܡ<EFBFBD>
|
||||
|
||||
### 4.4 Ϊʲôʹ<C3B4><CAB9> B-Tree <20><> B+Tree
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݽṹҲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD>ϵͳ<EFBFBD>ձ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> B-/+Tree <20><>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>ṹ<EFBFBD><E1B9B9>
|
||||
|
||||
ҳ<EFBFBD>Ǽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>飬Ӳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>̴洢<EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD>С<EFBFBD><EFBFBD><EFBFBD>ȵĿ飬ÿ<EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊһҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD>У<EFBFBD>ҳ<EFBFBD>ô<EFBFBD>Сͨ<EFBFBD><EFBFBD>Ϊ 4k<34><6B><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CDB4><EFBFBD><EFBFBD><EFBFBD>ҳΪ<D2B3><CEAA>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>
|
||||
|
||||
һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD>ܴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD>洢<EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϡ<EFBFBD>Ϊ<EFBFBD>˼<EFBFBD><EFBFBD>ٴ<EFBFBD><EFBFBD><EFBFBD> I/O<><4F><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϸ<EFBFBD><CFB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD>ζ<EFBFBD><CEB6><EFBFBD>Ԥ<EFBFBD><D4A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǽ<EFBFBD><C7BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ľֲ<C4BE><D6B2><EFBFBD>ԭ<EFBFBD><D4AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1>õ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>丽<EFBFBD><E4B8BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳͨ<D2B2><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϱ<EFBFBD>ʹ<EFBFBD>á<EFBFBD><C3A1><EFBFBD><EFBFBD>ݿ<EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˴<EFBFBD><CBB4><EFBFBD>Ԥ<EFBFBD><D4A4>ԭ<EFBFBD><D4AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ڵ<EFBFBD><DAB5>Ĵ<EFBFBD>С<EFBFBD><D0A1>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ҳ<EFBFBD><D2B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD>ڵ<EFBFBD>ֻ<EFBFBD><D6BB>Ҫһ<D2AA><D2BB> I/O <20>Ϳ<EFBFBD><CDBF><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD>롣B-Tree <20><>һ<EFBFBD>μ<EFBFBD><CEBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ h-1 <20><> I/O<><4F><EFBFBD><EFBFBD><EFBFBD>ڵ㳣פ<E3B3A3>ڴ棩<DAB4><E6A3A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD>Ϊ O(h)=O(logdN)<29><>һ<EFBFBD><D2BB>ʵ<EFBFBD><CAB5>Ӧ<EFBFBD><D3A6><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD> d <20>Ƿdz<C7B7><C7B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 100<30><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD> h <20>dz<EFBFBD>С<EFBFBD><D0A1>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 3<><33><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽṹ<D6BD><E1B9B9>h <20><><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>Ķࡣ<C4B6><E0A1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><DFBC>Ϻܽ<CFBA><DCBD>Ľڵ㣨<DAB5><E3A3A8><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͽ<EFBFBD><CFBF>ܺ<EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><DEB7><EFBFBD><EFBFBD>þֲ<C3BE><D6B2>ԣ<EFBFBD>Ч<EFBFBD><D0A7><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD> B-Tree <20><><EFBFBD>ܶࡣ
|
||||
|
||||
B+Tree <20><><EFBFBD>ʺ<EFBFBD><CABA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD><EFBFBD><EFBFBD><EFBFBD>ڽڵ<DABD><DAB5><EFBFBD><EFBFBD><EFBFBD> d <20>йء<D0B9><D8A1><EFBFBD><EFBFBD><EFBFBD> B+Tree <20>ڽڵ<DABD>ȥ<EFBFBD><C8A5><EFBFBD><EFBFBD> data <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˿<EFBFBD><CBBF><EFBFBD>ӵ<EFBFBD>и<EFBFBD><D0B8><EFBFBD><EFBFBD>ij<EFBFBD><C4B3>ȣ<EFBFBD>ӵ<EFBFBD>и<EFBFBD><D0B8>õ<EFBFBD><C3B5><EFBFBD><EFBFBD>ܡ<EFBFBD>
|
||||
|
||||
# <20><>ѯ<EFBFBD><D1AF><EFBFBD><EFBFBD><EFBFBD>Ż<EFBFBD>
|
||||
|
||||
## 1. Explain
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SQL <20><><EFBFBD>䣬<EFBFBD><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>бȽ<D0B1><C8BD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ֶ<EFBFBD><D6B6>У<EFBFBD>
|
||||
|
||||
- select_type : <20><>ѯ<EFBFBD><D1AF><EFBFBD>ͣ<EFBFBD><CDA3>м<D0BC>ѯ<EFBFBD><D1AF><EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD>ѯ<EFBFBD><D1AF><EFBFBD>Ӳ<EFBFBD>ѯ
|
||||
|
||||
- key : ʹ<>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
- rows : ɨ<><C9A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## 2. <20><><EFBFBD>ٷ<EFBFBD><D9B7>ص<EFBFBD><D8B5><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˹<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˷<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD>⣬Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ò<EFBFBD>Ҫʹ<EFBFBD><EFBFBD> SELECT * <20><><EFBFBD>䣬Ҫ<E4A3AC><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫѡ<D2AA><D1A1><EFBFBD><EFBFBD>ѯ<EFBFBD><D1AF><EFBFBD>С<EFBFBD>
|
||||
|
||||
## 3. <20><><EFBFBD>ٷ<EFBFBD><D9B7>ص<EFBFBD><D8B5><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD> LIMIT <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>Щ<EFBFBD>С<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Խ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD>ɨ<EFBFBD>衣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD>ɨ<EFBFBD>裬<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>Ҫɨ<EFBFBD>輸<EFBFBD>м<EFBFBD>¼<EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD>ʹ<EFBFBD><EFBFBD> Explain <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD>۲<EFBFBD> rows <20>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֲ<EFBFBD><D6B2>졣
|
||||
|
||||
```sql
|
||||
SELECT * FROM sakila.film_actor WHERE film_id = 1;
|
||||
```
|
||||
|
||||
## 4. <20><><EFBFBD>ִ<EFBFBD><D6B4><EFBFBD> DELETE <20><> INSERT <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>еĻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ס<EFBFBD>ܶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־<EFBFBD><EFBFBD><EFBFBD>ľ<EFBFBD>ϵͳ<EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܶ<EFBFBD>С<EFBFBD>ĵ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>IJ<EFBFBD>ѯ<EFBFBD><EFBFBD>
|
||||
|
||||
```sql
|
||||
DELEFT FROM messages WHERE create < DATE_SUB(NOW(), INTERVAL 3 MONTH);
|
||||
```
|
||||
```sql
|
||||
rows_affected = 0
|
||||
do {
|
||||
rows_affected = do_query(
|
||||
"DELETE FROM messages WHERE create < DATE_SUB(NOW(), INTERVAL 3 MONTH) LIMIT 10000")
|
||||
} while rows_affected > 0
|
||||
```
|
||||
|
||||
# <20>ֿ<EFBFBD><D6BF><EFBFBD><EFBFBD>ֱ<EFBFBD>
|
||||
|
||||
**1. <20>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD>ͬ**
|
||||
|
||||
<EFBFBD>ֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǽ<EFBFBD>һ<EFBFBD>ű<EFBFBD><EFBFBD>ֳɶ<EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ЩС<EFBFBD><EFBFBD>ӵ<EFBFBD>в<EFBFBD>ͬ<EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǽ<EFBFBD>һ<EFBFBD>ű<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݷ<EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>飬<EFBFBD><EFBFBD>Щ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ洢<EFBFBD><EFBFBD>ͬһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϣ<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD>Դ洢<EFBFBD>ڲ<EFBFBD>ͬ<EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ʽ<EFBFBD>±<EFBFBD><EFBFBD><EFBFBD>Ȼֻ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**2. ʹ<>÷ֿ<C3B7><D6BF><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD>ԭ<EFBFBD><D4AD>**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD>չ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD>еı<EFBFBD><EFBFBD><EFBFBD>Խ<EFBFBD><EFBFBD>Խ<EFBFBD>࣬<EFBFBD><EFBFBD><EFBFBD>ұ<EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD>Խ<EFBFBD><EFBFBD>Խ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**3. <20><>ֱ<EFBFBD>з<EFBFBD>**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>顢<EFBFBD><EFBFBD>ϵ<EFBFBD><EFBFBD><EFBFBD>г̶Ȼ<EFBFBD><EFBFBD>ֳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD>Ŀ<EFBFBD><EFBFBD>ϡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>磬<EFBFBD><EFBFBD><EFBFBD>ǻὨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ʒ<EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD> payDB<44><42><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD>ݿ<EFBFBD> userDB <20>ȣ<EFBFBD><C8A3>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><E6B4A2>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD>Ʒ<EFBFBD>йصı<D8B5><C4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB>йصı<D8B5><C4B1><EFBFBD>
|
||||
|
||||
**4. ˮƽ<CBAE>з<EFBFBD>**
|
||||
|
||||
<EFBFBD>ѱ<EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>ֹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṹ<EFBFBD><EFBFBD>ͬ<EFBFBD>ı<EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD>簴 id <20><>ɢ<EFBFBD><C9A2>ֵ<EFBFBD><D6B5><EFBFBD>Ա<EFBFBD><D4B1>Ƚ<EFBFBD><C8BD>л<EFBFBD><D0BB>֣<EFBFBD>
|
||||
|
||||
**5. <20><>ֱ<EFBFBD>з<EFBFBD><D0B7><EFBFBD>ˮƽ<CBAE>зֵ<D0B7>ѡ<EFBFBD><D1A1>**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD>еı<EFBFBD>̫<EFBFBD>࣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD>ֱ<EFBFBD>з<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD>࣬<EFBFBD><EFBFBD><EFBFBD>ǵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܴ<EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD>ˮƽ<EFBFBD>з֡<EFBFBD>
|
||||
|
||||
**6. ˮƽ<CBAE>зֵ<D0B7>ʵ<EFBFBD>ַ<EFBFBD>ʽ**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD> merge <20>洢<EFBFBD><E6B4A2><EFBFBD>档
|
||||
|
||||
**7. <20>ֿ<EFBFBD><D6BF><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
(1) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>ִ<EFBFBD>зֿ<EFBFBD><EFBFBD>ֱ<EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴ洢<EFBFBD><EFBFBD><EFBFBD>˲<EFBFBD>ͬ<EFBFBD>Ŀ<EFBFBD><EFBFBD>ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿⱾ<EFBFBD><EFBFBD><EFBFBD>ķֲ<EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȥִ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߰<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܴ<EFBFBD><EFBFBD>ۣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD>ȥЭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><EFBFBD>γɳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɱ<EFBFBD><EFBFBD>̷<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
(2) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD><EFBFBD>˷ֿ<EFBFBD><EFBFBD>ֱ<EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ὣԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ժ<EFBFBD>ǿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD>Ŀ<EFBFBD><EFBFBD>ϡ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD>ڲ<EFBFBD>ͬ<EFBFBD>ֿ<EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӷֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȳ<EFBFBD>ͬ<EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>Ҫһ<EFBFBD>β<EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɵ<EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD>β<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɡ<EFBFBD>
|
||||
|
||||
# <20><><EFBFBD><EFBFBD>ת<EFBFBD>ƺ<C6BA><CDB9>ϻָ<CFBB>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֹ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⣬ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD>⡣<EFBFBD><EFBFBD><EFBFBD>ϻָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǵӹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>лָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ұ<EFBFBD>֤<EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD>ԡ<EFBFBD>
|
||||
|
||||
## 1. <20><><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>
|
||||
|
||||
**1.1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><D0BB><EFBFBD>ɫ**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ̨<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD>⣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD><EFBFBD><EFBFBD>ƽṹ<C6BD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͱ<EFBFBD><CDB1><EFBFBD><EFBFBD><EFBFBD>ɫ<EFBFBD><C9AB>
|
||||
|
||||
**1.2 <20><><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7> IP <20>й<EFBFBD>**
|
||||
|
||||
Ϊ MySQL ʵ<><CAB5>ָ<EFBFBD><D6B8>һ<EFBFBD><D2BB><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD> MySQL ʵ<><CAB5>ʧЧʱ<D0A7><CAB1><EFBFBD><EFBFBD><EFBFBD>Խ<EFBFBD> IP <20><>ַת<D6B7>Ƶ<EFBFBD><C6B5><EFBFBD>һ̨ MySQL <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϡ<EFBFBD>
|
||||
|
||||
**1.3 <20>м<EFBFBD><D0BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>õķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϡ<EFBFBD>
|
||||
|
||||
|
||||
|
||||
**1.4 <20><>Ӧ<EFBFBD><D3A6><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><EFBFBD>ܵ<EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD>̫<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## 2. <20><><EFBFBD>ϻָ<CFBB>
|
||||
|
||||
|
||||
# <20>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> MySQL
|
||||
- [MySQL <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݽṹ<DDBD><E1B9B9><EFBFBD>㷨ԭ<E3B7A8><D4AD> ](http://blog.codinglabs.org/articles/theory-of-mysql-index.html)
|
||||
- [MySQL <20><><EFBFBD><EFBFBD><EFBFBD>Ż<EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD> ](http://www.runoob.com/w3cnote/mysql-index.html)
|
||||
- [20+ <20><> MySQL <20><><EFBFBD><EFBFBD><EFBFBD>Ż<EFBFBD><C5BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD> ](https://www.jfox.info/20-tiao-mysql-xing-nen-you-hua-de-zui-jia-jing-yan.html)
|
||||
734
notes/SQL 语法.md
Normal file
734
notes/SQL 语法.md
Normal file
@ -0,0 +1,734 @@
|
||||
<!-- GFM-TOC -->
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD>ѯ](#<23><>ѯ)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#ͨ<><CDA8><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD>ں<EFBFBD>ʱ<EFBFBD>䴦<EFBFBD><EFBFBD>](#<23><><EFBFBD>ں<EFBFBD>ʱ<EFBFBD>䴦<EFBFBD><E4B4A6>)
|
||||
* [<EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD>Ӳ<EFBFBD>ѯ](#<23>Ӳ<EFBFBD>ѯ)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD>ѯ](#<23><><EFBFBD>ϲ<EFBFBD>ѯ)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>)
|
||||
* [ɾ<EFBFBD><EFBFBD>](#ɾ<><C9BE>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD>ı<EFBFBD>](#<23>ı<DEB8>)
|
||||
* [<EFBFBD><EFBFBD>ͼ](#<23><>ͼ)
|
||||
* [<EFBFBD>洢<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD>α<EFBFBD>](#<23>α<EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>](#<23>ַ<EFBFBD><D6B7><EFBFBD>)
|
||||
* [Ȩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#Ȩ<><EFBFBD><DEB9><EFBFBD>)
|
||||
<!-- GFM-TOC -->
|
||||
|
||||
# <20><><EFBFBD><EFBFBD>
|
||||
|
||||
ģʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ洢<EFBFBD><EFBFBD><EFBFBD>洢ʲô<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ηֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD>ͱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ<EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD>ɾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
SQL<EFBFBD><EFBFBD>Structured Query Language)<29><><EFBFBD><EFBFBD> SQL <20><> ANSI <20><>ίԱ<CEAF><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD><D3B6><EFBFBD>Ϊ ANSI SQL<51><4C><EFBFBD><EFBFBD><EFBFBD><EFBFBD> DBMS <20><><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD>ʵ<EFBFBD>֣<EFBFBD><D6A3><EFBFBD> PL/SQL<51><4C>Transact-SQL <20>ȡ<EFBFBD>
|
||||
|
||||
# <20><>ѯ
|
||||
|
||||
SQL <20><><EFBFBD>䲻<EFBFBD><E4B2BB><EFBFBD>ִ<EFBFBD>Сд<D0A1><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ھ<EFBFBD><DABE><EFBFBD><EFBFBD><EFBFBD> DBMS <20>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD>á<EFBFBD>
|
||||
|
||||
**DISTINCT**
|
||||
|
||||
<EFBFBD><EFBFBD>ֵֻͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>Ρ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD>
|
||||
|
||||
```sql
|
||||
SELECT DISTINCT col1, col2
|
||||
FROM mytable;
|
||||
```
|
||||
|
||||
**LIMIT**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>Ʒ<EFBFBD><EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>ʼ<EFBFBD>У<EFBFBD><EFBFBD><EFBFBD> 0 <20><>ʼ<EFBFBD><CABC><EFBFBD>ڶ<EFBFBD><DAB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>ص<EFBFBD><D8B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ 5 <20>е<EFBFBD> SQL<51><4C>
|
||||
|
||||
```sql
|
||||
SELECT *
|
||||
FROM mytable
|
||||
LIMIT 5;
|
||||
```
|
||||
|
||||
```sql
|
||||
SELECT *
|
||||
FROM mytable
|
||||
LIMIT 0, 5;
|
||||
```
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD> 3 \~ 5 <20>У<EFBFBD>
|
||||
|
||||
```sql
|
||||
SELECT *
|
||||
FROM mytable
|
||||
LIMIT 2, 3;
|
||||
```
|
||||
|
||||
**ע<><D7A2>**
|
||||
|
||||
```sql
|
||||
# ע<EFBFBD><EFBFBD>
|
||||
SELECT *
|
||||
FROM mytable -- ע<><D7A2>
|
||||
/* ע<><D7A2>1
|
||||
ע<><D7A2>2 */
|
||||
```
|
||||
|
||||
# <20><><EFBFBD><EFBFBD>
|
||||
|
||||
**ASC**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD>ϣ<EFBFBD>
|
||||
**DESC**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```sql
|
||||
SELECT *
|
||||
FROM mytable
|
||||
ORDER BY col1 DESC, col2 ASC;
|
||||
```
|
||||
|
||||
# <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>Ӧ<EFBFBD>ò<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD>Թ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Dz<EFBFBD><EFBFBD>ڷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˽<EFBFBD><EFBFBD>й<EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݷdz<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>紫<EFBFBD><EFBFBD><EFBFBD>˺ܶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD>Ӷ<EFBFBD><EFBFBD>˷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```sql
|
||||
SELECT *
|
||||
FROM mytable
|
||||
WHERE col IS NULL;
|
||||
```
|
||||
|
||||
<EFBFBD>±<EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD> WHERE <20>Ӿ<EFBFBD><D3BE><EFBFBD><EFBFBD>õIJ<C3B5><C4B2><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
| <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> | ˵<><CBB5> |
|
||||
| ------------ | ------------ |
|
||||
| = < > | <20><><EFBFBD><EFBFBD> С<><D0A1> <20><><EFBFBD><EFBFBD> |
|
||||
| <> != | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> |
|
||||
| <= !> | С<>ڵ<EFBFBD><DAB5><EFBFBD> |
|
||||
| >= !< | <20><><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD> |
|
||||
| BETWEEN | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ֮<D6B5><D6AE> |
|
||||
| IS NULL | ΪNULLֵ |
|
||||
|
||||
Ӧ<EFBFBD><EFBFBD>ע<EFBFBD><EFBFBD><EFBFBD>NULL <20><> 0 <20><><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC>
|
||||
|
||||
**AND OR** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD><D3B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȴ<EFBFBD><C8B4><EFBFBD> AND<4E><44><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>˱<EFBFBD><CBB1><EFBFBD>ʽ<EFBFBD>漰<EFBFBD><E6BCB0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> AND <20><> OR ʱ<><CAB1>Ӧ<EFBFBD><D3A6>ʹ<EFBFBD><CAB9> () <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD>
|
||||
|
||||
**IN** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƥ<EFBFBD><C6A5>һ<EFBFBD><D2BB>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>Խ<EFBFBD>һ<EFBFBD><D2BB> SELECT <20>Ӿ䣬<D3BE>Ӷ<EFBFBD>ƥ<EFBFBD><C6A5><EFBFBD>Ӳ<EFBFBD>ѯ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD>һ<EFBFBD><D2BB>ֵ<EFBFBD><D6B5>
|
||||
|
||||
**NOT** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڷ<EFBFBD><DAB7><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
# ͨ<><CDA8><EFBFBD><EFBFBD>
|
||||
|
||||
ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD>ֶΡ<EFBFBD>
|
||||
|
||||
- **%** ƥ<><C6A5> >=0 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> \*<2A><>
|
||||
|
||||
- **\_** ƥ<><C6A5> ==1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> \.<2E><>
|
||||
|
||||
- **[ ]** <20><><EFBFBD><EFBFBD>ƥ<EFBFBD>伯<EFBFBD><E4BCAF><EFBFBD>ڵ<EFBFBD><DAB5>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD> ^ <20><><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>з<EFBFBD><D0B7><EFBFBD>
|
||||
|
||||
ʹ<EFBFBD><EFBFBD> Like <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>ƥ<EFBFBD>䡣
|
||||
|
||||
```sql
|
||||
SELECT *
|
||||
FROM mytable
|
||||
WHERE col LIKE '[^AB]%' -- <20><><EFBFBD><EFBFBD>AB<41><42>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD>
|
||||
```
|
||||
|
||||
<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD>ڿ<EFBFBD>ͷ<EFBFBD><EFBFBD>ƥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>dz<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȿͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͽ<EFBFBD><EFBFBD>ö࣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٵĻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫʹ<EFBFBD><EFBFBD> **AS** <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>ֶ<EFBFBD><D6B6><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD>
|
||||
|
||||
```sql
|
||||
SELECT col1*col2 AS alias
|
||||
FROM mytable
|
||||
```
|
||||
|
||||
**Concat()** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶΡ<D6B6><CEA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD>ʹ<EFBFBD>ÿո<C3BF><D5B8><EFBFBD>һ<EFBFBD><D2BB>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>Ϊ<EFBFBD>п<EFBFBD><D0BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵĽ<D3B5><C4BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һЩ<D2BB><D0A9><EFBFBD><EFBFBD>Ҫ<EFBFBD>Ŀո<C4BF><D5B8><EFBFBD>ʹ<EFBFBD><CAB9> **TRIM()** <20><><EFBFBD><EFBFBD>ȥ<EFBFBD><C8A5><EFBFBD><EFBFBD>β<EFBFBD>ո<EFBFBD><D5B8><EFBFBD>
|
||||
|
||||
```sql
|
||||
SELECT Concat(TRIM(col1), ' (', TRIM(col2), ')')
|
||||
FROM mytable
|
||||
```
|
||||
|
||||
# <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> DBMS <20>ĺ<EFBFBD><C4BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Dz<EFBFBD><C7B2><EFBFBD>ͬ<EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD>˲<EFBFBD><CBB2><EFBFBD><EFBFBD><EFBFBD>ֲ<EFBFBD><D6B2>
|
||||
|
||||
## <20>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
| <20><><EFBFBD><EFBFBD> | ˵<><CBB5> |
|
||||
| ------------ | ------------ |
|
||||
| LEFT() RIGHT() | <20><><EFBFBD><EFBFBD><DFBB><EFBFBD><EFBFBD>ұߵ<D2B1><DFB5>ַ<EFBFBD> |
|
||||
| LOWER() UPPER() | ת<><D7AA>ΪСд<D0A1><D0B4><EFBFBD>ߴ<EFBFBD>д |
|
||||
| LTRIM() RTIM() | ȥ<><C8A5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><DFBB><EFBFBD><EFBFBD>ұߵĿո<C4BF> |
|
||||
| LENGTH() | <20><><EFBFBD><EFBFBD> |
|
||||
| SUNDEX() | ת<><D7AA>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD>ֵ |
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>**SOUNDEX()** <20>ǽ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>ת<EFBFBD><D7AA>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD>ģʽ<C4A3><CABD><EFBFBD>㷨<EFBFBD><E3B7A8><EFBFBD><EFBFBD><EFBFBD>Ǹ<EFBFBD><C7B8>ݷ<EFBFBD><DDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD>Ƚϡ<C8BD>
|
||||
|
||||
```sql
|
||||
SELECT *
|
||||
FROM mytable
|
||||
WHERE SOUNDEX(col1) = SOUNDEX('apple')
|
||||
```
|
||||
## <20><><EFBFBD>ں<EFBFBD>ʱ<EFBFBD>䴦<EFBFBD><E4B4A6>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ڸ<EFBFBD>ʽ<EFBFBD><EFBFBD>YYYY-MM-DD
|
||||
|
||||
ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD>HH:MM:SS
|
||||
|
||||
|<7C><> <20><> | ˵ <20><>|
|
||||
| --- | --- |
|
||||
| AddDate() | <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ڣ<EFBFBD><DAA3>졢<EFBFBD>ܵȣ<DCB5>|
|
||||
| AddTime() | <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ʱ<EFBFBD>䣨ʱ<E4A3A8><CAB1><EFBFBD>ֵȣ<D6B5>|
|
||||
| CurDate() | <20><><EFBFBD>ص<EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD> |
|
||||
| CurTime() | <20><><EFBFBD>ص<EFBFBD>ǰʱ<C7B0><CAB1> |
|
||||
|Date() |<7C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD>|
|
||||
|DateDiff() |<7C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE>|
|
||||
|Date_Add() |<7C>߶<EFBFBD><DFB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㺯<EFBFBD><E3BAAF>|
|
||||
|Date_Format() |<7C><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڻ<EFBFBD>ʱ<EFBFBD>䴮|
|
||||
|Day()| <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>|
|
||||
|DayOfWeek() |<7C><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ڣ<EFBFBD><DAA3><EFBFBD><EFBFBD>ض<EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD>ڼ<EFBFBD>|
|
||||
|Hour() |<7C><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>Сʱ<D0A1><CAB1><EFBFBD><EFBFBD>|
|
||||
|Minute() |<7C><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ʱ<EFBFBD><CAB1><EFBFBD>ķ<EFBFBD><C4B7>Ӳ<EFBFBD><D3B2><EFBFBD>|
|
||||
|Month() |<7C><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5>·ݲ<C2B7><DDB2><EFBFBD>|
|
||||
|Now() |<7C><><EFBFBD>ص<EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD>ں<EFBFBD>ʱ<EFBFBD><CAB1>|
|
||||
|Second() |<7C><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>벿<EFBFBD><EBB2BF>|
|
||||
|Time() |<7C><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>ʱ<EFBFBD>䲿<EFBFBD><E4B2BF>|
|
||||
|Year() |<7C><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD>ݲ<EFBFBD><DDB2><EFBFBD>|
|
||||
|
||||
```sql
|
||||
mysql> SELECT NOW();
|
||||
-> '2017-06-28 14:01:52'
|
||||
```
|
||||
|
||||
## <20><>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>
|
||||
|
||||
| <20><><EFBFBD><EFBFBD> | ˵<><CBB5> |
|
||||
| --- | --- |
|
||||
| SIN() | <20><><EFBFBD><EFBFBD> |
|
||||
|COS() | <20><><EFBFBD><EFBFBD> |
|
||||
| TAN() | <20><><EFBFBD><EFBFBD> |
|
||||
| ABS() | <20><><EFBFBD><EFBFBD>ֵ |
|
||||
| SQRT() | ƽ<><C6BD><EFBFBD><EFBFBD>|
|
||||
| MOD() | <20><><EFBFBD><EFBFBD>|
|
||||
| EXP() | ָ<><D6B8>|
|
||||
| PI() | Բ<><D4B2><EFBFBD><EFBFBD>|
|
||||
|RAND() | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>|
|
||||
|
||||
## <20><><EFBFBD><EFBFBD>
|
||||
|
||||
|<7C><> <20><> |˵ <20><>|
|
||||
| --- | --- |
|
||||
|AVG() |<7C><><EFBFBD><EFBFBD>ij<EFBFBD>е<EFBFBD>ƽ<EFBFBD><C6BD>ֵ|
|
||||
|COUNT()| <20><><EFBFBD><EFBFBD>ij<EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>|
|
||||
|MAX()| <20><><EFBFBD><EFBFBD>ij<EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>ֵ|
|
||||
|MIN()| <20><><EFBFBD><EFBFBD>ij<EFBFBD>е<EFBFBD><D0B5><EFBFBD>Сֵ|
|
||||
|SUM() |<7C><><EFBFBD><EFBFBD>ij<EFBFBD><C4B3>ֵ֮<D6B5><D6AE>|
|
||||
|
||||
AVG() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NULL <20>С<EFBFBD>
|
||||
|
||||
DISTINCT <20>ؼ<EFBFBD><D8BC>ֻ<EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD>ܲ<EFBFBD>ͬ<EFBFBD><CDAC>ֵ<EFBFBD><D6B5>
|
||||
|
||||
```sql
|
||||
SELECT AVG(DISTINCT col1) AS avg_col
|
||||
FROM mytable
|
||||
```
|
||||
|
||||
# <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݷ<EFBFBD><EFBFBD><EFBFBD>ͬһ<EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>û<EFBFBD><EFBFBD>ܺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƽ<EFBFBD><EFBFBD>ֵ<EFBFBD>ȡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> col <20><><EFBFBD><EFBFBD><F2B2A2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>
|
||||
|
||||
```sql
|
||||
SELECT col, COUNT(*) AS num
|
||||
FROM mytable
|
||||
GROUP BY col;
|
||||
```
|
||||
|
||||
WHERE <20><><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>HAVING <20><><EFBFBD>˷<EFBFBD><CBB7>飬<EFBFBD>й<EFBFBD><D0B9><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˣ<EFBFBD>
|
||||
|
||||
```sql
|
||||
SELECT col, COUNT(*) AS num
|
||||
FROM mytable
|
||||
WHERE col > 2
|
||||
GROUP BY col
|
||||
HAVING COUNT(*) >= 2;
|
||||
```
|
||||
|
||||
GROUP BY <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>ֶΣ<D6B6><CEA3><EFBFBD> ORDER BY Ҳ<><D2B2><EFBFBD><EFBFBD><EFBFBD>Ծۼ<D4BE><DBBC>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```sql
|
||||
SELECT col, COUNT(*) AS num
|
||||
FROM mytable
|
||||
GROUP BY col
|
||||
ORDER BY num;
|
||||
```
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>涨<EFBFBD><EFBFBD>
|
||||
|
||||
1. GROUP BY <20>Ӿ<EFBFBD><D3BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> WHERE <20>Ӿ<EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>ORDER BY <20>Ӿ<EFBFBD>֮ǰ<D6AE><C7B0>
|
||||
2. <20><><EFBFBD>˻<EFBFBD><CBBB>ܼ<EFBFBD><DCBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD>⣬SELECT <20><><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>ÿһ<C3BF>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> GROUP BY <20>Ӿ<EFBFBD><D3BE>и<EFBFBD><D0B8><EFBFBD><EFBFBD><EFBFBD>
|
||||
3. NULL <20><><EFBFBD>лᵥ<D0BB><E1B5A5><EFBFBD><EFBFBD>Ϊһ<CEAA>飻
|
||||
4. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SQL ʵ<>ֲ<EFBFBD>֧<EFBFBD><D6A7> GROUP BY <20>о<EFBFBD><D0BE>пɱ䳤<C9B1>ȵ<EFBFBD><C8B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD>
|
||||
|
||||
# <20>Ӳ<EFBFBD>ѯ
|
||||
|
||||
<EFBFBD>Ӳ<EFBFBD>ѯ<EFBFBD><EFBFBD>ֻ<EFBFBD>ܷ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>Խ<EFBFBD><EFBFBD>Ӳ<EFBFBD>ѯ<EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ WHRER <20><><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```
|
||||
SELECT *
|
||||
FROM mytable1
|
||||
WHERE col1 IN (SELECT col2
|
||||
FROM mytable2);
|
||||
```
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӳ<EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD>ִ<EFBFBD><EFBFBD>һ<EFBFBD>Σ<EFBFBD>
|
||||
|
||||
```sql
|
||||
SELECT cust_name, (SELECT COUNT(*)
|
||||
FROM Orders
|
||||
WHERE Orders.cust_id = Customers.cust_id)
|
||||
AS orders_num
|
||||
FROM Customers
|
||||
ORDER BY cust_name;
|
||||
```
|
||||
|
||||
# <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD> JOIN <20>ؼ<EFBFBD><D8BC>֣<EFBFBD><D6A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> ON<4F><4E>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ӿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>滻<EFBFBD>Ӳ<EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ұ<EFBFBD><EFBFBD>Ӳ<EFBFBD>ѯ<EFBFBD><EFBFBD>Ч<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>졣
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> AS <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶκͱ<CEBA><CDB1><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>˼<EFBFBD><CBBC><EFBFBD> SQL <20><><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֳƵ<EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD>ʹ<EFBFBD><EFBFBD> INNER JOIN <20>ؼ<EFBFBD><D8BC>֡<EFBFBD>
|
||||
|
||||
```
|
||||
select a, b, c
|
||||
from A inner join B
|
||||
on A.key = B.key
|
||||
```
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><EFBFBD><EFBFBD>ȷʹ<EFBFBD><EFBFBD> INNER JOIN<49><4E><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>ѯ<EFBFBD><D1AF><EFBFBD><EFBFBD> WHERE <20>н<EFBFBD><D0BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD>õ<EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```
|
||||
select a, b, c
|
||||
from A, B
|
||||
where A.key = B.key
|
||||
```
|
||||
|
||||
<EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD>صѿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿ<EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>һ<EFBFBD>֣<EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD>
|
||||
|
||||
һ<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD>Ҫ<EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD> Jim <20><><EFBFBD><EFBFBD>ͬһ<CDAC><D2BB><EFBFBD>ŵ<EFBFBD><C5B5><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**<EFBFBD>Ӳ<EFBFBD>ѯ<EFBFBD>汾**
|
||||
|
||||
```
|
||||
select name
|
||||
from employee
|
||||
where department = (
|
||||
select department
|
||||
from employee
|
||||
where name = "Jim");
|
||||
```
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӱ汾**
|
||||
|
||||
```
|
||||
select name
|
||||
from employee as e1, employee as e2
|
||||
where e1.department = e2.department
|
||||
and e1.name = "Jim";
|
||||
```
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӳ<EFBFBD>ѯ<EFBFBD><EFBFBD>Ч<EFBFBD>ʸߡ<EFBFBD>
|
||||
|
||||
## <20><>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӻ<EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD>ӡ<EFBFBD>
|
||||
|
||||
```
|
||||
select *
|
||||
from employee natural join department;
|
||||
```
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD>С<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD>ȫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӿ<EFBFBD><EFBFBD>DZ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>й˿͵Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD>Ĺ˿͡<EFBFBD>
|
||||
|
||||
```
|
||||
select Customers.cust_id, Orders.order_num
|
||||
from Customers left outer join Orders
|
||||
on Customers.cust_id = Orders.curt_id
|
||||
```
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫͳ<EFBFBD>ƹ˿͵Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>þۼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```
|
||||
select Customers.cust_id,
|
||||
COUNT(Orders.order_num) as num_ord
|
||||
from Customers left outer join Orders
|
||||
on Customers.cust_id = Orders.curt_id
|
||||
group by Customers.cust_id
|
||||
```
|
||||
|
||||
# <20><><EFBFBD>ϲ<EFBFBD>ѯ
|
||||
|
||||
ʹ<EFBFBD><EFBFBD> **UNION** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯ<EFBFBD><D1AF>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD>ѯ<EFBFBD><D1AF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD>߾ۼ<DFBE><DBBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
Ĭ<EFBFBD>ϻ<EFBFBD>ȥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD>У<EFBFBD>ʹ<EFBFBD><EFBFBD> UNION ALL <20><>
|
||||
|
||||
ֻ<EFBFBD>ܰ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD> ORDER BY <20>Ӿ䣬<D3BE><E4A3AC><EFBFBD>ұ<EFBFBD><D2B1><EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```sql
|
||||
SELECT col
|
||||
FROM mytable
|
||||
WHERE col = 1
|
||||
UNION
|
||||
SELECT col
|
||||
FROM mytable
|
||||
WHERE col =2;
|
||||
```
|
||||
|
||||
# <20><><EFBFBD><EFBFBD>
|
||||
|
||||
**<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
```sql
|
||||
INSERT INTO mytable(col1, col2)
|
||||
VALUES(val1, val2);
|
||||
```
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
```sql
|
||||
INSERT INTO mytable1(col1, col2)
|
||||
SELECT col1, col2
|
||||
FROM mytable2;
|
||||
```
|
||||
|
||||
**<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD><EFBFBD>Ƶ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>±<EFBFBD>**
|
||||
|
||||
```sql
|
||||
CREATE TABLE newtable AS
|
||||
SELECT * FROM mytable;
|
||||
```
|
||||
|
||||
# <20><><EFBFBD><EFBFBD>
|
||||
|
||||
```sql
|
||||
UPDATE mytable
|
||||
SET col = val
|
||||
WHERE id = 1;
|
||||
```
|
||||
|
||||
# ɾ<><C9BE>
|
||||
|
||||
```sql
|
||||
DELETE FROM mytable
|
||||
WHERE id = 1;
|
||||
```
|
||||
|
||||
**TRUNCATE TABLE** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ձ<EFBFBD><D5B1><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>
|
||||
|
||||
ʹ<EFBFBD>ø<EFBFBD><EFBFBD>º<EFBFBD>ɾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱһ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD> WHERE <20>Ӿ䣬<D3BE><E4A3AC>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ű<EFBFBD><C5B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݶ<EFBFBD><DDB6>ƻ<EFBFBD><C6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SELECT <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD><D0B2>ԣ<EFBFBD><D4A3><EFBFBD>ֹ<EFBFBD><D6B9><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD>
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```sql
|
||||
CREATE TABLE mytable (
|
||||
id INT NOT NULL AUTO_INCREMENT,
|
||||
col1 INT NOT NULL DEFAULT 1,
|
||||
col2 VARCHAR(45) NULL,
|
||||
col3 DATE NULL,
|
||||
PRIMARY KEY (`id`));
|
||||
```
|
||||
|
||||
# <20>ı<DEB8>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
```sql
|
||||
ALTER TABLE mytable
|
||||
ADD col CHAR(20);
|
||||
```
|
||||
|
||||
**ɾ<><C9BE><EFBFBD><EFBFBD>**
|
||||
|
||||
```sql
|
||||
ALTER TABLE mytable
|
||||
DROP COLUMN col;
|
||||
```
|
||||
|
||||
**ɾ<><C9BE><EFBFBD><EFBFBD>**
|
||||
|
||||
```sql
|
||||
DROP TABLE mytable;
|
||||
```
|
||||
|
||||
# <20><>ͼ
|
||||
|
||||
<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>Ҳ<EFBFBD>Ͳ<EFBFBD><EFBFBD>ܶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͷ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ºô<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
1. <20><EFBFBD><F2BBAFB8>ӵ<EFBFBD> SQL <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>縴<EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD>
|
||||
2. ֻʹ<D6BB><CAB9>ʵ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>
|
||||
3. ͨ<><CDA8>ֻ<EFBFBD><D6BB><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC>Ȩ<EFBFBD>ޣ<EFBFBD><DEA3><EFBFBD>֤<EFBFBD><D6A4><EFBFBD>ݵİ<DDB5>ȫ<EFBFBD>ԣ<EFBFBD>
|
||||
4. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD>ʽ<EFBFBD>ͱ<EFBFBD>ʾ<EFBFBD><CABE>
|
||||
|
||||
```sql
|
||||
CREATE VIEW myview AS
|
||||
SELECT Concat(col1, col2) AS concat_col, col3*col4 AS count_col
|
||||
FROM mytable
|
||||
WHERE col5 = val;
|
||||
```
|
||||
|
||||
# <20>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD>洢<EFBFBD><EFBFBD><EFBFBD>̿<EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƕ<EFBFBD>һϵ<EFBFBD><EFBFBD> SQL <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**ʹ<>ô洢<C3B4><E6B4A2><EFBFBD>̵ĺô<C4BA>**
|
||||
|
||||
1. <20><>ʵ<EFBFBD>ַ<EFBFBD>װ<EFBFBD><D7B0><EFBFBD>˴洢<CBB4><E6B4A2><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2>֤<EFBFBD>˰<EFBFBD>ȫ<EFBFBD>ԣ<EFBFBD>
|
||||
2. <20><><EFBFBD>Ը<EFBFBD><D4B8>ô<EFBFBD><C3B4>룻
|
||||
3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ԥ<EFBFBD>ȱ<EFBFBD><C8B1>룬<EFBFBD><EBA3AC><EFBFBD>˾<EFBFBD><CBBE>кܸߵ<DCB8><DFB5><EFBFBD><EFBFBD>ܡ<EFBFBD>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ; Ϊ<><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD>˷ֺţ<D6BA><C5A3><EFBFBD><EFBFBD>˻<EFBFBD><CBBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ⲿ<EFBFBD>ַֺŵ<D6BA><C5B5><EFBFBD><EFBFBD>ǽ<EFBFBD><C7BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFB7A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> in<69><6E>out <20><> inout <20><><EFBFBD>ֲ<EFBFBD><D6B2><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD> select into <20><><EFBFBD>䡣
|
||||
|
||||
ÿ<EFBFBD><EFBFBD>ֻ<EFBFBD>ܸ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֧<EFBFBD>ּ<EFBFBD><EFBFBD>ϵIJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```sql
|
||||
delimiter //
|
||||
|
||||
create procedure myprocedure( out ret int )
|
||||
begin
|
||||
declare y int;
|
||||
select sum(col1)
|
||||
from mytable
|
||||
into y;
|
||||
select y*y into ret;
|
||||
end //
|
||||
delimiter ;
|
||||
```
|
||||
|
||||
```sql
|
||||
call myprocedure(@ret);
|
||||
select @ret;
|
||||
```
|
||||
|
||||
# <20>α<EFBFBD>
|
||||
|
||||
<EFBFBD>ڴ洢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD>α<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD>α<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ڽ<EFBFBD><EFBFBD><EFBFBD>ʽӦ<EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݼ<EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD>
|
||||
|
||||
**ʹ<><CAB9><EFBFBD>α<EFBFBD><CEB1><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD>裺**
|
||||
|
||||
1. <20><><EFBFBD><EFBFBD><EFBFBD>α꣬<CEB1><EAA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB>ʵ<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>
|
||||
2. <20><><EFBFBD><EFBFBD><EFBFBD>αꣻ
|
||||
3. ȡ<><C8A1><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>
|
||||
4. <20>ر<EFBFBD><D8B1>αꣻ
|
||||
|
||||
```sql
|
||||
delimiter //
|
||||
create procedure myprocedure(out ret int)
|
||||
begin
|
||||
declare done boolean default 0;
|
||||
|
||||
declare mycursor cursor for
|
||||
select col1 from mytable;
|
||||
# <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>continue handler<EFBFBD><EFBFBD><EFBFBD><EFBFBD> sqlstate '02000' <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD> set done = 1
|
||||
declare continue handler for sqlstate '02000' set done = 1;
|
||||
|
||||
open mycursor;
|
||||
|
||||
repeat
|
||||
fetch mycursor into ret;
|
||||
select ret;
|
||||
until done end repeat;
|
||||
|
||||
close mycursor;
|
||||
end //
|
||||
delimiter ;
|
||||
```
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD>ִ<EFBFBD>У<EFBFBD>DELETE<EFBFBD><EFBFBD>INSERT<EFBFBD><EFBFBD>UPDATE
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD>֮ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD>ִ<EFBFBD>У<EFBFBD>֮ǰִ<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD> BEFORE <20>ؼ<EFBFBD><D8BC>֣<EFBFBD>֮<EFBFBD><D6AE>ִ<EFBFBD><D6B4>ʹ<EFBFBD><CAB9> AFTER <20>ؼ<EFBFBD><D8BC>֡<EFBFBD>BEFORE <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD>;<EFBFBD><CDBE><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
INSERT <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>Ϊ NEW <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```sql
|
||||
CREATE TRIGGER mytrigger AFTER INSERT ON mytable
|
||||
FOR EACH ROW SELECT NEW.col;
|
||||
```
|
||||
|
||||
DELETE <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>Ϊ OLD <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD>ġ<EFBFBD>
|
||||
|
||||
UPDATE <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>Ϊ NEW <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>Ϊ OLD <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> NEW <20>ǿ<EFBFBD><C7BF>Ա<EFBFBD><D4B1>ĵأ<C4B5><D8A3><EFBFBD> OLD <20><>ֻ<EFBFBD><D6BB><EFBFBD>ġ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƹ<EFBFBD><EFBFBD>٣<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD>¼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>ű<EFBFBD><EFBFBD>С<EFBFBD>
|
||||
|
||||
MySQL <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> CALL <20><><EFBFBD><EFBFBD> <20><>Ҳ<EFBFBD><D2B2><EFBFBD>Dz<EFBFBD><C7B2>ܵ<EFBFBD><DCB5>ô洢<C3B4><E6B4A2><EFBFBD>̡<EFBFBD>
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>transaction<6F><6E>ָһ<D6B8><D2BB> SQL <20><><EFBFBD>䣻
|
||||
2. <20><><EFBFBD>ˣ<EFBFBD>rollback<63><6B>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8> SQL <20><><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9>̣<EFBFBD>
|
||||
3. <20>ύ<EFBFBD><E1BDBB>commit<69><74>ָ<EFBFBD><D6B8>δ<EFBFBD>洢<EFBFBD><E6B4A2> SQL <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD><EFBFBD><EFBFBD>
|
||||
4. <20><><EFBFBD><EFBFBD><EFBFBD>㣨savepoint<6E><74>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD><C3B5><EFBFBD>ʱռλ<D5BC><CEBB><EFBFBD><EFBFBD>placeholder<65><72><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˣ<EFBFBD><CBA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ܻ<EFBFBD><EFBFBD><EFBFBD> SELECT <20><><EFBFBD>䣬<EFBFBD><E4A3AC><EFBFBD><EFBFBD> SELECT <20><><EFBFBD><EFBFBD>Ҳû<D2B2><C3BB><EFBFBD>壻Ҳ<E5A3BB><D2B2><EFBFBD>ܻ<EFBFBD><DCBB><EFBFBD> CRETE <20><> DROP <20><><EFBFBD>䡣
|
||||
|
||||
MySQL <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ύĬ<E1BDBB><C4AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD>ύ<EFBFBD><E1BDBB>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD>ÿִ<C3BF><D6B4>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB>ύһ<E1BDBB>Ρ<EFBFBD><CEA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> START TRANSACTION <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ر<EFBFBD><D8B1><EFBFBD>ʽ<EFBFBD>ύ<EFBFBD><E1BDBB><EFBFBD><EFBFBD> COMMIT <20><> ROLLBACK <20><><EFBFBD><EFBFBD>ִ<EFBFBD>к<EFBFBD><D0BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6>رգ<D8B1><D5A3><EFBFBD><EFBFBD>»ָ<C2BB><D6B8><EFBFBD>ʽ<EFBFBD>ύ<EFBFBD><E1BDBB>
|
||||
|
||||
ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> autocommit Ϊ 0 <20><><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD>Զ<EFBFBD><D4B6>ύ<EFBFBD><E1BDBB>ֱ<EFBFBD><D6B1> autocommit <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 1 <20>Ż<EFBFBD><C5BB>ύ<EFBFBD><E1BDBB>autocommit <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD><D3B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><D4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>㣬ROLLBACK <20><><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD> START TRANSACTION <20><><EFBFBD>䴦<EFBFBD><E4B4A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˱<EFBFBD><CBB1><EFBFBD><EFBFBD>㣬<EFBFBD><E3A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ROLLBACK <20><>ָ<EFBFBD><D6B8><EFBFBD>ñ<EFBFBD><C3B1><EFBFBD><EFBFBD>㣬<EFBFBD><E3A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>ñ<EFBFBD><C3B1><EFBFBD><EFBFBD>㡣
|
||||
|
||||
```sql
|
||||
START TRANSACTION
|
||||
// ...
|
||||
SAVEPOINT delete1
|
||||
// ...
|
||||
ROLLBACK TO delete1
|
||||
// ...
|
||||
COMMIT
|
||||
```
|
||||
|
||||
# <20>ַ<EFBFBD><D6B7><EFBFBD>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
1. <20>ַ<EFBFBD><D6B7><EFBFBD>Ϊ<EFBFBD><CEAA>ĸ<EFBFBD>ͷ<EFBFBD><CDB7>ŵļ<C5B5><C4BC>ϣ<EFBFBD>
|
||||
2. <20><><EFBFBD><EFBFBD>Ϊij<CEAA><C4B3><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD>ʾ<EFBFBD><CABE>
|
||||
3. У<><D0A3><EFBFBD>ַ<EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>αȽϣ<C8BD><CFA3><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>顣
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>˸<EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD>⣬Ҳ<EFBFBD><EFBFBD><EFBFBD>Ը<EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```sql
|
||||
CREATE TABLE mytable
|
||||
(col VARCHAR(10) CHARACTER SET latin COLLATE latin1_general_ci )
|
||||
DEFAULT CHARACTER SET hebrew COLLATE hebrew_general_ci;
|
||||
```
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱָ<EFBFBD><EFBFBD>У<EFBFBD>ԣ<EFBFBD>
|
||||
|
||||
```sql
|
||||
SELECT *
|
||||
FROM mytable
|
||||
ORDER BY col COLLATE latin1_general_ci;
|
||||
```
|
||||
|
||||
# Ȩ<><EFBFBD><DEB9><EFBFBD>
|
||||
|
||||
MySQL <20><><EFBFBD>˻<EFBFBD><CBBB><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD> mysql <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><DDBF>С<EFBFBD>
|
||||
|
||||
```sql
|
||||
USE mysql;
|
||||
SELECT user FROM user;
|
||||
```
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˻<EFBFBD>**
|
||||
|
||||
```sql
|
||||
CREATE USER myuser IDENTIFIED BY 'mypassword';
|
||||
```
|
||||
|
||||
<EFBFBD>´<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˻<EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD>Ȩ<EFBFBD>ޡ<EFBFBD>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD>˻<EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
```sql
|
||||
RENAME myuser TO newuser;
|
||||
```
|
||||
|
||||
**ɾ<><C9BE><EFBFBD>˻<EFBFBD>**
|
||||
|
||||
```sql
|
||||
DROP USER myuser;
|
||||
```
|
||||
|
||||
**<EFBFBD>鿴Ȩ<EFBFBD><EFBFBD>**
|
||||
|
||||
```sql
|
||||
SHOW GRANTS FOR myuser;
|
||||
```
|
||||
|
||||
|
||||
<EFBFBD>˻<EFBFBD><EFBFBD><EFBFBD> username@host <20><><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD>壬username@% ʹ<>õ<EFBFBD><C3B5><EFBFBD>Ĭ<EFBFBD><C4AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȩ<EFBFBD><EFBFBD>**
|
||||
|
||||
```sql
|
||||
GRANT SELECT, INSERT ON mydatabase.* TO myuser;
|
||||
```
|
||||
|
||||
**ɾ<><C9BE>Ȩ<EFBFBD><C8A8>**
|
||||
|
||||
```sql
|
||||
REVOKE SELECT, INSERT ON mydatabase.* FROM myuser;
|
||||
```
|
||||
|
||||
GRANT <20><> REVOKE <20><><EFBFBD>ڼ<EFBFBD><DABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͽ<EFBFBD><CFBF>Ʒ<EFBFBD><C6B7><EFBFBD>Ȩ<EFBFBD>ޣ<EFBFBD>
|
||||
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> GRANT ALL<4C><4C> REVOKE ALL<4C><4C>
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ⣬ʹ<E2A3AC><CAB9> ON database.\*<2A><>
|
||||
- <20>ض<EFBFBD><D8B6>ı<EFBFBD><C4B1><EFBFBD>ʹ<EFBFBD><CAB9> ON database.table<6C><65>
|
||||
- <20>ض<EFBFBD><D8B6><EFBFBD><EFBFBD>У<EFBFBD>
|
||||
- <20>ض<EFBFBD><D8B6>Ĵ洢<C4B4><E6B4A2><EFBFBD>̡<EFBFBD>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD> Password() <20><><EFBFBD><EFBFBD>
|
||||
|
||||
```sql
|
||||
SET PASSWROD FOR myuser = Password('newpassword');
|
||||
```
|
||||
|
||||
1810
notes/剑指 offer 题解.md
Normal file
1810
notes/剑指 offer 题解.md
Normal file
File diff suppressed because it is too large
Load Diff
1632
notes/算法.md
Normal file
1632
notes/算法.md
Normal file
File diff suppressed because it is too large
Load Diff
739
notes/计算机操作系统.md
Normal file
739
notes/计算机操作系统.md
Normal file
@ -0,0 +1,739 @@
|
||||
<!-- GFM-TOC -->
|
||||
* [<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>](#<23><>һ<EFBFBD><D2BB>-<2D><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [1. <20><><EFBFBD><EFBFBD>](#1-<2D><><EFBFBD><EFBFBD>)
|
||||
* [2. <20><><EFBFBD><EFBFBD>](#2-<2D><><EFBFBD><EFBFBD>)
|
||||
* [3. <20><><EFBFBD><EFBFBD>](#3-<2D><><EFBFBD><EFBFBD>)
|
||||
* [4. <20>첽](#4-<2D>첽)
|
||||
* [ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD>жϷ<EFBFBD><EFBFBD><EFBFBD>](#<23>жϷ<D0B6><CFB7><EFBFBD>)
|
||||
* [1. <20><><EFBFBD>ж<EFBFBD>](#1-<2D><><EFBFBD>ж<EFBFBD>)
|
||||
* [2. <20>쳣](#2-<2D>쳣)
|
||||
* [3. <20><><EFBFBD><EFBFBD>](#3-<2D><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD>ں˺<EFBFBD><EFBFBD>ں<EFBFBD>](#<23><><EFBFBD>ں˺<DABA><EFBFBD>ں<EFBFBD>)
|
||||
* [1. <20><><EFBFBD>ں<EFBFBD>](#1-<2D><><EFBFBD>ں<EFBFBD>)
|
||||
* [2. <>ں<EFBFBD>](#2-<>ں<EFBFBD>)
|
||||
* [<EFBFBD>ڶ<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>̹<EFBFBD><CCB9><EFBFBD>](#<23>ڶ<EFBFBD><DAB6><EFBFBD>-<2D><><EFBFBD>̹<EFBFBD><CCB9><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>)
|
||||
* [1. <20><><EFBFBD><EFBFBD>](#1-<2D><><EFBFBD><EFBFBD>)
|
||||
* [2. <20>߳<EFBFBD>](#2-<2D>߳<EFBFBD>)
|
||||
* [3. <20><><EFBFBD><EFBFBD>](#3-<2D><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD><EFBFBD>л<EFBFBD>](#<23><><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD>л<EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨](#<23><><EFBFBD><EFBFBD><EFBFBD>㷨)
|
||||
* [1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<CFB5>еĵ<D0B5><C4B5><EFBFBD>](#1-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<CFB5>еĵ<D0B5><C4B5><EFBFBD>)
|
||||
* [1.1 <20><><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD>FCFS<46><53>](#11-<2D><><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD>fcfs<66><73>)
|
||||
* [1.2 <20><><EFBFBD><EFBFBD>ҵ<EFBFBD><D2B5><EFBFBD>ȣ<EFBFBD>SJF<4A><46>](#12-<2D><><EFBFBD><EFBFBD>ҵ<EFBFBD><D2B5><EFBFBD>ȣ<EFBFBD>sjf<6A><66>)
|
||||
* [1.3 <20><><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>SRTN<54><4E>](#13-<2D><><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>srtn<74><6E>)
|
||||
* [2. <20><><EFBFBD><EFBFBD>ʽϵͳ<CFB5>еĵ<D0B5><C4B5><EFBFBD>](#2-<2D><><EFBFBD><EFBFBD>ʽϵͳ<CFB5>еĵ<D0B5><C4B5><EFBFBD>)
|
||||
* [2.1 <20><><EFBFBD><EFBFBD>Ȩ<EFBFBD><C8A8><EFBFBD><EFBFBD>](#21-<2D><><EFBFBD><EFBFBD>Ȩ<EFBFBD><C8A8><EFBFBD><EFBFBD>)
|
||||
* [2.2 ʱ<><CAB1>Ƭ<EFBFBD><C6AC>ת](#22-ʱ<><CAB1>Ƭ<EFBFBD><C6AC>ת)
|
||||
* [2.3 <20>༶<EFBFBD><E0BCB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#23-<2D>༶<EFBFBD><E0BCB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [2.4 <20>̽<EFBFBD><CCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#24-<2D>̽<EFBFBD><CCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [3. ʵʱϵͳ<CFB5>еĵ<D0B5><C4B5><EFBFBD>](#3-ʵʱϵͳ<CFB5>еĵ<D0B5><C4B5><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC>)
|
||||
* [1. <20>ٽ<EFBFBD><D9BD><EFBFBD>](#1-<2D>ٽ<EFBFBD><D9BD><EFBFBD>)
|
||||
* [2. ͬ<><CDAC><EFBFBD>뻥<EFBFBD><EBBBA5>](#2-ͬ<><CDAC><EFBFBD>뻥<EFBFBD><EBBBA5>)
|
||||
* [3. <20>ź<EFBFBD><C5BA><EFBFBD>](#3-<2D>ź<EFBFBD><C5BA><EFBFBD>)
|
||||
* [4. <20>ܳ<EFBFBD>](#4-<2D>ܳ<EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>)
|
||||
* [1. <20>ܵ<EFBFBD>](#1-<2D>ܵ<EFBFBD>)
|
||||
* [2. <20>ź<EFBFBD><C5BA><EFBFBD>](#2-<2D>ź<EFBFBD><C5BA><EFBFBD>)
|
||||
* [3. <20><>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD>](#3-<2D><>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD>)
|
||||
* [4. <20>ź<EFBFBD>](#4-<2D>ź<EFBFBD>)
|
||||
* [5. <20><><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>](#5-<2D><><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>)
|
||||
* [6. <20><EFBFBD><D7BD><EFBFBD>](#6-<2D><EFBFBD><D7BD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [1. <20><><EFBFBD><EFBFBD>-д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#1-<2D><><EFBFBD><EFBFBD>-д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [2. <20><>ѧ<EFBFBD>ҽ<EFBFBD><D2BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#2-<2D><>ѧ<EFBFBD>ҽ<EFBFBD><D2BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#1-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [2. <20><><EFBFBD><EFBFBD>Ԥ<EFBFBD><D4A4>](#2-<2D><><EFBFBD><EFBFBD>Ԥ<EFBFBD><D4A4>)
|
||||
* [2.1 <20>ƻ<EFBFBD><C6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#21-<2D>ƻ<EFBFBD><C6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [2.2 <20>ƻ<EFBFBD><C6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뱣<EFBFBD><EBB1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#22-<2D>ƻ<EFBFBD><C6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뱣<EFBFBD><EBB1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [2.3 <20>ƻ<EFBFBD><C6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>](#23-<2D>ƻ<EFBFBD><C6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>)
|
||||
* [2.4 <20>ƻ<EFBFBD><C6BB><EFBFBD>·<EFBFBD>ȴ<EFBFBD>](#24-<2D>ƻ<EFBFBD><C6BB><EFBFBD>·<EFBFBD>ȴ<EFBFBD>)
|
||||
* [3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#3-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [3.1 <20><>ȫ״̬](#31-<2D><>ȫ״̬)
|
||||
* [3.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><D0BC>㷨](#32-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><D0BC>㷨)
|
||||
* [3.3 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><D0BC>㷨](#33-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><D0BC>㷨)
|
||||
* [4. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>](#4-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>)
|
||||
* [4.1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨](#41-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨)
|
||||
* [4.2 <20><><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>](#42-<2D><><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD>](#<23><>ҳ<EFBFBD><D2B3><EFBFBD>ֶ<EFBFBD>)
|
||||
* [1. <20><>ҳ](#1-<2D><>ҳ)
|
||||
* [2. <20>ֶ<EFBFBD>](#2-<2D>ֶ<EFBFBD>)
|
||||
* [3. <20><>ҳʽ](#3-<2D><>ҳʽ)
|
||||
* [4. <20><>ҳ<EFBFBD><D2B3><EFBFBD>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD><EFBFBD>](#4-<2D><>ҳ<EFBFBD><D2B3><EFBFBD>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [ҳ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD>㷨](#ҳ<><D2B3><EFBFBD>û<EFBFBD><C3BB>㷨)
|
||||
* [1. <20><><EFBFBD>ѣ<EFBFBD>Optimal<61><6C>](#1-<2D><><EFBFBD>ѣ<EFBFBD>optimal<61><6C>)
|
||||
* [2. <20>Ƚ<EFBFBD><C8BD>ȳ<EFBFBD><C8B3><EFBFBD>FIFO<46><4F>](#2-<2D>Ƚ<EFBFBD><C8BD>ȳ<EFBFBD><C8B3><EFBFBD>fifo<66><6F>)
|
||||
* [3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δʹ<CEB4>ã<EFBFBD>LRU<52><55>Least Recently Used<65><64>](#3-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δʹ<CEB4>ã<EFBFBD>lru<72><75>least-recently-used<65><64>)
|
||||
* [4. ʱ<>ӣ<EFBFBD>Clock<63><6B>](#4-ʱ<>ӣ<EFBFBD>clock<63><6B>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>豸<EFBFBD><E8B1B8><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D>豸<EFBFBD><E8B1B8><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD>̵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨](#<23><><EFBFBD>̵<EFBFBD><CCB5><EFBFBD><EFBFBD>㷨)
|
||||
* [1. <20><><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD>FCFS<46><53>First Come First Serverd<72><64>](#1-<2D><><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD>fcfs<66><73>first-come-first-serverd<72><64>)
|
||||
* [2. <20><><EFBFBD><EFBFBD>Ѱ<EFBFBD><D1B0>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>SSTF<54><46>Shortest Seek Time First<73><74>](#2-<2D><><EFBFBD><EFBFBD>Ѱ<EFBFBD><D1B0>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>sstf<74><66>shortest-seek-time-first<73><74>)
|
||||
* [3. ɨ<><C9A8><EFBFBD>㷨<EFBFBD><E3B7A8>SCAN<41><4E>](#3-ɨ<><C9A8><EFBFBD>㷨<EFBFBD><E3B7A8>scan<61><6E>)
|
||||
* [4. ѭ<><D1AD>ɨ<EFBFBD><C9A8><EFBFBD>㷨<EFBFBD><E3B7A8>CSCAN<41><4E>](#4-ѭ<><D1AD>ɨ<EFBFBD><C9A8><EFBFBD>㷨<EFBFBD><E3B7A8>cscan<61><6E>)
|
||||
* [<EFBFBD>ο<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD>)
|
||||
<!-- GFM-TOC -->
|
||||
|
||||
# <20><>һ<EFBFBD><D2BB> <20><><EFBFBD><EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 1. <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָͬһʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҪӲ<EFBFBD><EFBFBD>֧<EFBFBD>֣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˮ<EFBFBD><EFBFBD><EFBFBD>߶ദ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̺<EFBFBD><EFBFBD>̣߳<EFBFBD>ʹ<EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>
|
||||
|
||||
### 2. <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָϵͳ<EFBFBD>е<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD>Թ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD>̹<EFBFBD>ͬʹ<EFBFBD>á<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>Ϊ<EFBFBD>ٽ<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӡ<EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD>ͬһʱ<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̷<EFBFBD><EFBFBD>ʣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ֶ<EFBFBD><EFBFBD>ٽ<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD>ķ<EFBFBD><EFBFBD>ʡ<EFBFBD>
|
||||
|
||||
### 3. <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>⼼<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>塣<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⼼<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>ָ<EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϳշָ<EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>ָ<EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><EFBFBD>ִֻ<EFBFBD><EFBFBD>һС<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>Ƭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 4. <20>첽
|
||||
|
||||
<EFBFBD>첽<EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD>̲<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣͣ<EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><EFBFBD><EFBFBD>֪<EFBFBD><EFBFBD><EFBFBD>ٶ<EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD>ƽ<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>̬<EFBFBD><EFBFBD>Ҫ<EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD>һЩ<EFBFBD><EFBFBD><EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫʹ<EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD>ôӶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ںˣ<EFBFBD><EFBFBD>ɲ<EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD>ɡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>豸<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̹<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>š<EFBFBD><EFBFBD>洢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD>
|
||||
|
||||
## <20>жϷ<D0B6><CFB7><EFBFBD>
|
||||
|
||||
### 1. <20><><EFBFBD>ж<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> CPU ִ<><D6B4>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> I/O <20><><EFBFBD><EFBFBD><EFBFBD>жϣ<D0B6><CFA3><EFBFBD>ʾ<EFBFBD>豸<EFBFBD><E8B1B8><EFBFBD><EFBFBD>/<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD>ɣ<EFBFBD><C9A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>/<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><F3A1A3B4><EFBFBD><E2BBB9>ʱ<EFBFBD><CAB1><EFBFBD>жϡ<D0B6><CFA1><EFBFBD><EFBFBD><EFBFBD>̨<EFBFBD>жϵȡ<CFB5>
|
||||
|
||||
### 2. <20>쳣
|
||||
|
||||
<EFBFBD><EFBFBD> CPU ִ<><D6B4>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>롢<EFBFBD><EBA1A2>ַԽ<D6B7>硢<EFBFBD><E7A1A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD>
|
||||
|
||||
### 3. <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD>á<EFBFBD>
|
||||
|
||||
## <20><><EFBFBD>ں˺<DABA><EFBFBD>ں<EFBFBD>
|
||||
|
||||
### 1. <20><><EFBFBD>ں<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ں<EFBFBD><EFBFBD>ǽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܽ<EFBFBD><EFBFBD>ϵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD><EFBFBD>ںˣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڸ<EFBFBD>ģ<EFBFBD>鹲<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>кܸߵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܡ<EFBFBD>
|
||||
|
||||
### 2. <>ں<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD>ϸ<EFBFBD><EFBFBD>ӣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˽<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ֲ<EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƴ<EFBFBD><EFBFBD>ںˣ<EFBFBD><EFBFBD>Ӷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ں˵ĸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԡ<EFBFBD><EFBFBD>Ƴ<EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>ݷֲ<EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD>ֳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҪƵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>̬<EFBFBD>ͺ<EFBFBD><EFBFBD><EFBFBD>̬֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD><EFBFBD>
|
||||
|
||||
# <20>ڶ<EFBFBD><DAB6><EFBFBD> <20><><EFBFBD>̹<EFBFBD><CCB9><EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>
|
||||
|
||||
### 1. <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Dz<EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>̿<EFBFBD><EFBFBD>ƿ<EFBFBD> (Process Control Block, PCB) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̵Ļ<CCB5><C4BB><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD><EFBFBD>ν<EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̺ͳ<CCBA><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̣<EFBFBD><CCA3><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8> PCB <20>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 2. <20>߳<EFBFBD>
|
||||
|
||||
һ<EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD><EFBFBD>п<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD>̣߳<EFBFBD><EFBFBD>Ƕ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȵĻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD>ͬһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>
|
||||
|
||||
### 3. <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> ӵ<><D3B5><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̲߳<DFB3>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD>߳̿<DFB3><CCBF>Է<EFBFBD><D4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̵<EFBFBD><CCB5><EFBFBD>Դ<EFBFBD><D4B4>
|
||||
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD>ȣ<EFBFBD><C8A3>߳<EFBFBD><DFB3>Ƕ<EFBFBD><C7B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȵĻ<C8B5><C4BB><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD>ͬһ<CDAC><D2BB><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3>̵߳<DFB3><CCB5>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5>߳<EFBFBD><DFB3>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><D0B5>߳<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><D0BB><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>ϵͳ<CFB5><CDB3>ҪΪ֮<CEAA><D6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4>ռ䡢I/O <20>豸<EFBFBD>ȣ<EFBFBD><C8A3><EFBFBD><EFBFBD>˲<EFBFBD><CBB2><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>ʱ<EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶأ<C6B5><D8A3>ڽ<EFBFBD><DABD>н<EFBFBD><D0BD><EFBFBD><EFBFBD>л<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>漰<EFBFBD><E6BCB0>ǰִ<C7B0>н<EFBFBD><D0BD><EFBFBD> CPU <20><><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><C4B1>漰<EFBFBD>µ<EFBFBD><C2B5>Ƚ<EFBFBD><C8BD><EFBFBD> CPU <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>á<EFBFBD><C3A1><EFBFBD><EFBFBD>߳<EFBFBD><DFB3>л<EFBFBD>ʱֻ<CAB1>豣<EFBFBD><E8B1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><DDA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>⣬<EFBFBD><E2A3AC><EFBFBD><EFBFBD>ͬһ<CDAC><D2BB><EFBFBD><EFBFBD><EFBFBD>ڵĶ<DAB5><C4B6><EFBFBD><EFBFBD>̹߳<DFB3><CCB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̵ĵ<CCB5>ַ<EFBFBD>ռ䣬<D5BC><E4A3AC><EFBFBD>ˣ<EFBFBD><CBA3><EFBFBD>Щ<EFBFBD>߳<EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD>ͨ<EFBFBD>ŷdz<C5B7><C7B3><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>֣<EFBFBD><D6A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<CFB5>ĸ<EFBFBD>Ԥ<EFBFBD><D4A4>
|
||||
|
||||
<EFBFBD><EFBFBD> ͨ<>ŷ<EFBFBD><C5B7>棺<EFBFBD><E6A3BA><EFBFBD>̼<EFBFBD>ͨ<EFBFBD><CDA8> (IPC) <20><>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD>ֶεĸ<CEB5><C4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD>֤<EFBFBD><D6A4><EFBFBD>ݵ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD><EFBFBD>̼߳<DFB3><CCBC><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>ֱ<EFBFBD>Ӷ<EFBFBD>/д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݶΣ<DDB6><CEA3><EFBFBD>ȫ<EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>š<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>QQ <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̣<EFBFBD><CCA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>кܶ<D0BA><DCB6>̣߳<DFB3><CCA3><EFBFBD><EFBFBD><EFBFBD> http <20><><EFBFBD><EFBFBD><EFBFBD>̡߳<DFB3><CCA1>¼<EFBFBD><C2BC><EFBFBD>Ӧ<EFBFBD>̡߳<DFB3><CCA1><EFBFBD>Ⱦ<EFBFBD>̵߳ȵȣ<C8B5><C8A3>̵߳IJ<CCB5><C4B2><EFBFBD>ִ<EFBFBD><D6B4>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><D0B5><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӴӶ<D3B4><D3B6><EFBFBD><EFBFBD><EFBFBD> http <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD>л<EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD>ȱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD>Ӷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǹ<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CPU<50><55>ȱ<EFBFBD><C8B1> CPU <20><><EFBFBD>ý<EFBFBD><C3BD>̴<EFBFBD><CCB4><EFBFBD><EFBFBD><EFBFBD>̬ת<CCAC><D7AA>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD>̬<EFBFBD><CCAC>
|
||||
|
||||
ֻ<EFBFBD>о<EFBFBD><EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD>ǵ<EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD>Ӷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CPU ʱ<>䣬תΪ<D7AA><CEAA><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<D7B4>Ľ<EFBFBD><C4BD>̣<EFBFBD><CCA3>ڷ<EFBFBD><DAB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CPU ʱ<><CAB1>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD>ͻ<EFBFBD>תΪ<D7AA><CEAA><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD>ȴ<EFBFBD><C8B4><EFBFBD>һ<EFBFBD>ε<EFBFBD><CEB5>ȡ<EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD>㷨
|
||||
|
||||
<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>۵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD>
|
||||
|
||||
### 1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<CFB5>еĵ<D0B5><C4B5><EFBFBD>
|
||||
|
||||
#### 1.1 <20><><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD>FCFS<46><53>
|
||||
|
||||
first-come first-serverd<72><64>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƚ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڶ<EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һֱ<EFBFBD>ȴ<EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>ҵִ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫִ<EFBFBD>кܳ<EFBFBD>ʱ<EFBFBD>䣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˶<EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD>ȴ<EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
#### 1.2 <20><><EFBFBD><EFBFBD>ҵ<EFBFBD><D2B5><EFBFBD>ȣ<EFBFBD>SJF<4A><46>
|
||||
|
||||
shortest job first<73><74>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ȹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̵<EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD>п<EFBFBD><EFBFBD>ܻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һֱ<EFBFBD>ȴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵִ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD>״̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һֱ<EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD>Զ<EFBFBD>ò<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD>
|
||||
|
||||
#### 1.3 <20><><EFBFBD><EFBFBD>ʣ<EFBFBD><CAA3>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>SRTN<54><4E>
|
||||
|
||||
shortest remaining time next<78><74>
|
||||
|
||||
### 2. <20><><EFBFBD><EFBFBD>ʽϵͳ<CFB5>еĵ<D0B5><C4B5><EFBFBD>
|
||||
|
||||
#### 2.1 <20><><EFBFBD><EFBFBD>Ȩ<EFBFBD><C8A8><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>˿<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȩ֮<EFBFBD>⣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD>ȷ<EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD> = (<28>ȴ<EFBFBD>ʱ<EFBFBD><CAB1> + Ҫ<><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>) / Ҫ<><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> = <20><>Ӧʱ<D3A6><CAB1> / Ҫ<><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>Ϊ<EFBFBD>˽<EFBFBD><EFBFBD><EFBFBD> SJF <20>г<EFBFBD><D0B3><EFBFBD>ҵ<EFBFBD><D2B5><EFBFBD>ܻ<EFBFBD><DCBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⣬<EFBFBD><E2A3AC>Ϊ<EFBFBD><CEAA><EFBFBD>ŵȴ<C5B5>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6>Ҳ<EFBFBD><D2B2>Խ<EFBFBD><D4BD>Խ<EFBFBD>ߡ<EFBFBD>
|
||||
|
||||
#### 2.2 ʱ<><CAB1>Ƭ<EFBFBD><C6AC>ת
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>о<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̰<EFBFBD> FCFS <20><>ԭ<EFBFBD><D4AD><EFBFBD>ų<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>ÿ<EFBFBD>ε<EFBFBD><CEB5><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD> CPU <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><D7BD>̣<EFBFBD><CCA3>ý<EFBFBD><C3BD>̿<EFBFBD><CCBF><EFBFBD>ִ<EFBFBD><D6B4>һ<EFBFBD><D2BB>ʱ<EFBFBD><CAB1>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>ɼ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>жϣ<D0B6><CFA3><EFBFBD><EFBFBD>ȳ<EFBFBD><C8B3><EFBFBD><EFBFBD><EFBFBD>ֹͣ<CDA3>ý<EFBFBD><C3BD>̵<EFBFBD>ִ<EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>ĩβ<C4A9><CEB2>ͬʱ<CDAC><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CPU <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<D7B5><C4BD>̡<EFBFBD>
|
||||
|
||||
ʱ<EFBFBD><EFBFBD>Ƭ<EFBFBD><EFBFBD>ת<EFBFBD>㷨<EFBFBD><EFBFBD>Ч<EFBFBD>ʺ<EFBFBD>ʱ<EFBFBD><EFBFBD>Ƭ<EFBFBD>кܴ<EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊÿ<EFBFBD>ν<EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̵<EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>½<EFBFBD><EFBFBD>̵<EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>Ƭ̫<EFBFBD>̣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD>̫Ƶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD>ϾͻỨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>䡣
|
||||
|
||||
#### 2.3 <20>༶<EFBFBD><E0BCB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>и<EFBFBD><D0B8>費ͬ<E8B2BB><CDAC><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD><EFBFBD>ߣ<EFBFBD><DFA3>ڶ<EFBFBD><DAB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>Ȩ<EFBFBD><C8A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD><CDA1><EFBFBD><EFBFBD>㷨<EFBFBD><E3B7A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><D0BD><EFBFBD>ִ<EFBFBD><D6B4>ʱ<EFBFBD><CAB1>Ƭ<EFBFBD>Ĵ<EFBFBD>СҲ<D0A1><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȨԽ<C8A8>ߵĶ<DFB5><C4B6><EFBFBD><EFBFBD>У<EFBFBD>Ϊÿ<CEAA><C3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>涨<EFBFBD><E6B6A8>ִ<EFBFBD><D6B4>ʱ<EFBFBD><CAB1>Ƭ<EFBFBD><C6AC>ԽС<D4BD><D0A1>
|
||||
|
||||
<EFBFBD><EFBFBD> <20><>һ<EFBFBD><D2BB><EFBFBD>½<EFBFBD><C2BD>̽<EFBFBD><CCBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƚ<EFBFBD><C8BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>е<EFBFBD>ĩβ<C4A9><CEB2><EFBFBD><EFBFBD> FCFS ԭ<><D4AD><EFBFBD>Ŷӵȴ<D3B5><C8B4><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5>ý<EFBFBD><C3BD><EFBFBD>ִ<EFBFBD><D6B4>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڸ<EFBFBD>ʱ<EFBFBD><CAB1>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><C9A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><D7BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ʱ<EFBFBD><CAB1>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>δ<EFBFBD><CEB4><EFBFBD>ɣ<EFBFBD><C9A3><EFBFBD><EFBFBD>ȳ<EFBFBD><C8B3><EFBFBD><EFBFBD>㽫<EFBFBD>ý<EFBFBD><C3BD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>еĶ<D0B5>β<EFBFBD><CEB2>
|
||||
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>ǰ i -1 <20><><EFBFBD><EFBFBD><EFBFBD>о<EFBFBD><D0BE><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>Ż<EFBFBD><C5BB><EFBFBD><EFBFBD>ȵ<EFBFBD> i <20><><EFBFBD><EFBFBD><EFBFBD>еĽ<D0B5><C4BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>
|
||||
|
||||
<EFBFBD>ŵ㣺ʵʱ<EFBFBD>Ժã<EFBFBD>Ҳ<EFBFBD>ʺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD>ͳ<EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD>
|
||||
|
||||
#### 2.4 <20>̽<EFBFBD><CCBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 3. ʵʱϵͳ<CFB5>еĵ<D0B5><C4B5><EFBFBD>
|
||||
|
||||
ʵʱϵͳҪһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ڵõ<EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>ΪӲʵʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵʱ<EFBFBD><EFBFBD>ǰ<EFBFBD>߱<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԵĽ<EFBFBD>ֹʱ<EFBFBD>䣬<EFBFBD><EFBFBD><EFBFBD>߿<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>ʱ<EFBFBD><EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC>
|
||||
|
||||
### 1. <20>ٽ<EFBFBD><D9BD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ٽ<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD>з<EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>Ƕδ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ٽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
Ϊ<EFBFBD>˻<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٽ<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٽ<EFBFBD><EFBFBD><EFBFBD>֮ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>Ƚ<EFBFBD><EFBFBD>м<EFBFBD><EFBFBD>顣
|
||||
|
||||
```html
|
||||
// entry section
|
||||
// critical section;
|
||||
// exit section
|
||||
```
|
||||
|
||||
### 2. ͬ<><CDAC><EFBFBD>뻥<EFBFBD><EBBBA5>
|
||||
|
||||
ͬ<EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̰<EFBFBD>һ<EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD>ִ<EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬһʱ<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڶ<EFBFBD><EFBFBD>ٽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵĻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϣ<EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵġ<EFBFBD>
|
||||
|
||||
### 3. <20>ź<EFBFBD><C5BA><EFBFBD>
|
||||
|
||||
**<EFBFBD>ź<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Samaphore<EFBFBD><EFBFBD>**<2A><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ͱ<EFBFBD><CDB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD>ִ<EFBFBD><D6B4> down <20><> up <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>dz<EFBFBD><C7B3><EFBFBD><EFBFBD><EFBFBD> P <20><> V <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
- **down** : <20><><EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD><C5BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0 <20><>ִ<EFBFBD><D6B4> - 1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD><C5BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0<><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˯<EFBFBD>ߣ<EFBFBD><DFA3>ȴ<EFBFBD><C8B4>ź<EFBFBD><C5BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 0<><30>
|
||||
- **up**<2A><><EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD><C5BA><EFBFBD>ִ<EFBFBD><D6B4> + 1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>˯<EFBFBD>ߵĽ<DFB5><C4BD>̣<EFBFBD><CCA3>ý<EFBFBD><C3BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> down <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
down <20><> up <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD>Ƴ<EFBFBD>ԭ<EFBFBD><EFBFBD><EFA3AC><EFBFBD>ɷָͨ<EEA3AC><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4><EFBFBD><EFBFBD>Щ<EFBFBD><D0A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>жϡ<D0B6>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡֵֻ<EFBFBD><EFBFBD>Ϊ 0 <20><><EFBFBD><EFBFBD> 1<><31><EFBFBD><EFBFBD>ô<EFBFBD>ͳ<EFBFBD>Ϊ<EFBFBD><CEAA>**<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Mutex<65><78>**<2A><>0 <20><>ʾ<EFBFBD>ٽ<EFBFBD><D9BD><EFBFBD><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1 <20><>ʾ<EFBFBD>ٽ<EFBFBD><D9BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```c
|
||||
typedef int samaphore;
|
||||
samaphore mutex = 1;
|
||||
void P1() {
|
||||
down(mutex);
|
||||
// <20>ٽ<EFBFBD><D9BD><EFBFBD>
|
||||
up(mutex);
|
||||
}
|
||||
|
||||
void P2() {
|
||||
down(mutex);
|
||||
// <20>ٽ<EFBFBD><D9BD><EFBFBD>
|
||||
up(mutex);
|
||||
}
|
||||
```
|
||||
|
||||
**ʹ<><CAB9><EFBFBD>ź<EFBFBD><C5BA><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
ʹ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> mutex <20><><EFBFBD><EFBFBD><EFBFBD>ٽ<EFBFBD><D9BD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD>з<EFBFBD><D0B7>ʣ<EFBFBD>empty <20><>¼<EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>full <20><>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
ע<EFBFBD>⣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD> down <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٽ<EFBFBD><D9BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȶ<EFBFBD><C8B6>ٽ<EFBFBD><D9BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4> down <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߶<EFBFBD><DFB6>ٽ<EFBFBD><D9BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4> down(empty) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> empty = 0<><30><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˯<EFBFBD>ߡ<EFBFBD><DFA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߴ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD>ٽ<EFBFBD><D9BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>߶<EFBFBD><DFB6>ٽ<EFBFBD><D9BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˣ<EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><DEB7><EFBFBD>ִ<EFBFBD><D6B4> up(empty) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><C3B4><EFBFBD><EFBFBD><EFBFBD>ߺ<EFBFBD><DFBA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߾ͻ<DFBE>һֱ<D2BB>ȴ<EFBFBD><C8B4><EFBFBD>ȥ<EFBFBD><C8A5>
|
||||
|
||||
```c
|
||||
#define N 100
|
||||
typedef int samaphore;
|
||||
samaphore mutex = 1;
|
||||
samaphore empty = N;
|
||||
samaphore full = 0;
|
||||
|
||||
void producer() {
|
||||
while(TRUE){
|
||||
int item = produce_item;
|
||||
down(empty);
|
||||
down(mutex);
|
||||
insert_item(item);
|
||||
up(mutex);
|
||||
up(full);
|
||||
}
|
||||
}
|
||||
|
||||
void consumer() {
|
||||
while(TRUE){
|
||||
down(full);
|
||||
down(mutex);
|
||||
int item = remove_item(item);
|
||||
up(mutex);
|
||||
up(empty);
|
||||
consume_item(item);
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
### 4. <20>ܳ<EFBFBD>
|
||||
|
||||
ʹ<EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ͻ<EFBFBD><EFBFBD>˴<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>̰ܳѿ<EFBFBD><EFBFBD>ƵĴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳʹ<EFBFBD>ÿͻ<EFBFBD><EFBFBD>˴<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ø<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ס<EFBFBD>
|
||||
|
||||
c <20><><EFBFBD>Բ<EFBFBD>֧<EFBFBD>ֹ̣ܳ<DCB3><CCA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Pascal <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̡ܳ<DCB3>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĹܳ<C4B9><DCB3>ṩ<EFBFBD><E1B9A9> insert() <20><> remove() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB>˴<EFBFBD><CBB4><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⡣
|
||||
|
||||
```html
|
||||
monitor ProducerConsumer
|
||||
integer i;
|
||||
condition c;
|
||||
|
||||
procedure insert();
|
||||
begin
|
||||
|
||||
end;
|
||||
|
||||
procedure remove();
|
||||
begin
|
||||
|
||||
end;
|
||||
end monitor;
|
||||
```
|
||||
|
||||
<EFBFBD>ܳ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ù̡ܳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>е<EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һֱռ<EFBFBD>ụ̀ܳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>뽫<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ù̡ܳ<EFBFBD>
|
||||
|
||||
<EFBFBD>ܳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> **<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>** <20>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD>صIJ<D8B5><C4B2><EFBFBD><EFBFBD><EFBFBD>**wait()** <20><> **signal()** <20><>ʵ<EFBFBD><CAB5>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4> wait() <20><><EFBFBD><EFBFBD><EFBFBD>ᵼ<EFBFBD>µ<EFBFBD><C2B5>ý<EFBFBD><C3BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹܳ<D1B9><DCB3>ó<EFBFBD><C3B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>̳<EFBFBD><CCB3>С<EFBFBD>signal() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڻ<EFBFBD><DABB>ѱ<EFBFBD><D1B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><C4BD>̡<EFBFBD>
|
||||
|
||||
**ʹ<>ùܳ<C3B9>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
```html
|
||||
monitor ProducerConsumer
|
||||
condition full, empty;
|
||||
integer count := 0;
|
||||
condition c;
|
||||
|
||||
procedure insert(item: integer);
|
||||
begin
|
||||
if count = N then wait(full);
|
||||
insert_item(item);
|
||||
count := count + 1;
|
||||
if count = 1 ten signal(empty);
|
||||
end;
|
||||
|
||||
function remove: integer;
|
||||
begin
|
||||
if count = 0 then wait(empty);
|
||||
remove = remove_item;
|
||||
count := count - 1;
|
||||
if count = N -1 then signal(full);
|
||||
end;
|
||||
end monitor;
|
||||
|
||||
procedure producer
|
||||
begin
|
||||
while true do
|
||||
begin
|
||||
item = produce_item;
|
||||
ProducerConsumer.insert(item);
|
||||
end
|
||||
end;
|
||||
|
||||
procedure consumer
|
||||
begin
|
||||
while true do
|
||||
begin
|
||||
item = ProducerConsumer.remove;
|
||||
consume_item(item);
|
||||
end
|
||||
end;
|
||||
```
|
||||
|
||||
## <20><><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>ſ<EFBFBD><EFBFBD>Կ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Dz<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>̼<EFBFBD><EFBFBD><EFBFBD><EFBFBD>߳<EFBFBD>ͨ<EFBFBD>ţ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̵߳<EFBFBD>ͨ<EFBFBD>ŷ<EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫʹ<EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ơ<EFBFBD>
|
||||
|
||||
### 1. <20>ܵ<EFBFBD>
|
||||
|
||||
<EFBFBD>ܵ<EFBFBD><EFBFBD>ǵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD><EFBFBD>Ƚ<EFBFBD><EFBFBD>ȳ<EFBFBD><EFBFBD>ġ<EFBFBD><EFBFBD>ṹ<EFBFBD>ġ<EFBFBD><EFBFBD>̶<EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̵ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̵ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڹܵ<EFBFBD><EFBFBD><EFBFBD>β<EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڹܵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӹܵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>
|
||||
|
||||
<EFBFBD>ܵ<EFBFBD><EFBFBD>ṩ<EFBFBD>˼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƻ<EFBFBD><EFBFBD>ƣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD>չܵ<EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD>ܵ<EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̽<EFBFBD>һֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>أ<EFBFBD><EFBFBD>ܵ<EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼд<EFBFBD>ܵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̴ӹܵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮ǰ<EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD>̽<EFBFBD>һֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
Linux <20>йܵ<D0B9><DCB5><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD>ʵ<EFBFBD>֡<EFBFBD>
|
||||
|
||||
<EFBFBD>ܵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> <20><>ͨ<EFBFBD>ܵ<EFBFBD><DCB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD>һ<EFBFBD><D2BB>ֻ֧<D6BB>ְ<EFBFBD>˫<EFBFBD><CBAB>ͨ<EFBFBD>ŷ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD>ֻ<EFBFBD>ܵ<EFBFBD><DCB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䣻<EFBFBD><E4A3BB><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD>ڸ<EFBFBD><DAB8>ӽ<EFBFBD><D3BD><EFBFBD>֮<EFBFBD><D6AE>ʹ<EFBFBD>ã<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD>ܵ<EFBFBD><DCB5><EFBFBD>ȥ<EFBFBD><C8A5><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD>֧<EFBFBD><D6A7>˫<EFBFBD><CBAB><EFBFBD><EFBFBD><EFBFBD>䣻
|
||||
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ܵ<EFBFBD><DCB5><EFBFBD>ȥ<EFBFBD><C8A5><EFBFBD>ڶ<EFBFBD><DAB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><C6A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD>ؽ<EFBFBD><D8BD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>š<EFBFBD>
|
||||
|
||||
### 2. <20>ź<EFBFBD><C5BA><EFBFBD>
|
||||
|
||||
<EFBFBD>ź<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̶Թ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD>ķ<EFBFBD><EFBFBD>ʡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><EFBFBD><EFBFBD>ֹij<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڷ<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD>ʸ<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˣ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD>̼<EFBFBD><EFBFBD>Լ<EFBFBD>ͬһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>ͬ<EFBFBD>߳<EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>ֶΡ<EFBFBD>
|
||||
|
||||
### 3. <20><>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD><EFBFBD>п˷<EFBFBD><EFBFBD><EFBFBD><EFBFBD>źŴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD>١<EFBFBD><EFBFBD>ܵ<EFBFBD>ֻ<EFBFBD>ܳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȱ<EFBFBD>㡣
|
||||
|
||||
### 4. <20>ź<EFBFBD>
|
||||
|
||||
<EFBFBD>ź<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>ֱȽϸ<EFBFBD><EFBFBD>ӵ<EFBFBD>ͨ<EFBFBD>ŷ<EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֪ͨ<EFBFBD><EFBFBD><EFBFBD>ս<EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 5. <20><><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӳ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ܱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>ڴ棬<EFBFBD><EFBFBD><EFBFBD>ι<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̴<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̶<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD>ʡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IPC <20><>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̼<EFBFBD>ͨ<EFBFBD>ŷ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD>Ч<EFBFBD>ʵͶ<CAB5>ר<EFBFBD><D7A8><EFBFBD><EFBFBD><EFBFBD>Ƶġ<C6B5><C4A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>Ż<EFBFBD><C5BB>ƣ<EFBFBD><C6A3><EFBFBD><EFBFBD>ź<EFBFBD><C5BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD>ʵ<EFBFBD>ֽ<EFBFBD><D6BD>̼<EFBFBD><CCBC><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD>ͨ<EFBFBD>š<EFBFBD>
|
||||
|
||||
### 6. <20><EFBFBD><D7BD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD>һ<EFBFBD>ֽ<EFBFBD><EFBFBD>̼<EFBFBD>ͨ<EFBFBD>Ż<EFBFBD><EFBFBD>ƣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>Ż<EFBFBD><EFBFBD>Ʋ<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>š<EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>۹<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 1. <20><><EFBFBD><EFBFBD>-д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Dz<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD>Լ<EFBFBD>д<EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͱ<EFBFBD><EFBFBD><EFBFBD> count <20><>¼<EFBFBD>ڶ<EFBFBD><DAB6><EFBFBD><EFBFBD>ݽ<EFBFBD><DDBD>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><C4BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> count_mutex <20><><EFBFBD>ڶ<EFBFBD> count <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> data_mutex <20><><EFBFBD>ڶԶ<DAB6>д<EFBFBD><D0B4><EFBFBD><EFBFBD><EFBFBD>ݼ<EFBFBD><DDBC><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```c
|
||||
typedef int semaphore;
|
||||
semaphore count_mutex = 1;
|
||||
semaphore data_mutex = 1;
|
||||
int count = 0;
|
||||
|
||||
void reader() {
|
||||
while(TRUE) {
|
||||
down(count_mutex);
|
||||
count++;
|
||||
if(count == 1) down(data_mutex); // <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><DDBD>м<EFBFBD><D0BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֹд<D6B9><D0B4><EFBFBD>̷<EFBFBD><CCB7><EFBFBD>
|
||||
up(count_mutex);
|
||||
read();
|
||||
down(count_mutex);
|
||||
count--;
|
||||
if(count == 0) up(data_mutex);
|
||||
up(count_mutex);
|
||||
}
|
||||
}
|
||||
|
||||
void writer() {
|
||||
while(TRUE) {
|
||||
down(data_mutex);
|
||||
write();
|
||||
up(data_mutex);
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
### 2. <20><>ѧ<EFBFBD>ҽ<EFBFBD><D2BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><EFBFBD>Χ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>Բ<EFBFBD>ܣ<EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD>ŷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD>Լ<EFBFBD>˼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD>ҳԷ<EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߵĿ<EFBFBD><EFBFBD>ӡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>ִ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľⷨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><EFBFBD>ͬʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱߵĿ<EFBFBD><EFBFBD>ӣ<EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱߵĿ<EFBFBD><EFBFBD>ӣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```c
|
||||
#define N 5
|
||||
#define LEFT (i + N - 1) % N
|
||||
#define RIGHT (i + N) % N
|
||||
typedef int semaphore;
|
||||
semaphore chopstick[N];
|
||||
|
||||
void philosopher(int i) {
|
||||
while(TURE){
|
||||
think();
|
||||
down(chopstick[LEFT[i]]);
|
||||
down(chopstick[RIGHT[i]]);
|
||||
eat();
|
||||
up(chopstick[RIGHT[i]]);
|
||||
up(chopstick[LEFT[i]]);
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
Ϊ<EFBFBD>˷<EFBFBD>ֹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߵĿ<EFBFBD><EFBFBD>ӣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD>Ƕδ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```c
|
||||
semaphore mutex = 1;
|
||||
|
||||
void philosopher(int i) {
|
||||
while(TURE){
|
||||
think();
|
||||
down(mutex);
|
||||
down(chopstick[LEFT[i]]);
|
||||
down(chopstick[RIGHT[i]]);
|
||||
up(mutex);
|
||||
eat();
|
||||
down(mutex);
|
||||
up(chopstick[RIGHT[i]]);
|
||||
up(chopstick[LEFT[i]]);
|
||||
up(mutex);
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
1. <20><><EFBFBD><EFBFBD>
|
||||
2. <20><><EFBFBD><EFBFBD><EFBFBD>뱣<EFBFBD>֣<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ѻ<EFBFBD><D1BB>õ<EFBFBD><C3B5><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD>ֲ<EFBFBD><D6B2>š<EFBFBD>
|
||||
3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ
|
||||
4. <20><>·<EFBFBD>ȴ<EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>װ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⡣
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ֲ<EFBFBD><EFBFBD>Բ<EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>
|
||||
|
||||
### 2. <20><><EFBFBD><EFBFBD>Ԥ<EFBFBD><D4A4>
|
||||
|
||||
<EFBFBD>ڳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮ǰԤ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
#### 2.1 <20>ƻ<EFBFBD><C6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѻ<EFBFBD><EFBFBD><EFBFBD>ӡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ψһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӡ<EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǵ<EFBFBD>ӡ<EFBFBD><EFBFBD><EFBFBD>ػ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>̡<EFBFBD>
|
||||
|
||||
#### 2.2 <20>ƻ<EFBFBD><C6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뱣<EFBFBD><EBB1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
һ<EFBFBD><EFBFBD>ʵ<EFBFBD>ַ<EFBFBD>ʽ<EFBFBD>ǹ涨<EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڿ<EFBFBD>ʼִ<EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>
|
||||
|
||||
#### 2.3 <20>ƻ<EFBFBD><C6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD>
|
||||
|
||||
#### 2.4 <20>ƻ<EFBFBD><C6BB><EFBFBD>·<EFBFBD>ȴ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դͳһ<EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>ܰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>
|
||||
|
||||
### 3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD>ڳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ⷢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
#### 3.1 <20><>ȫ״̬
|
||||
|
||||
|
||||
|
||||
ͼ a <20>ĵڶ<C4B5><DAB6><EFBFBD> has <20><>ʾ<EFBFBD><CABE>ӵ<EFBFBD>е<EFBFBD><D0B5><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> max <20><>ʾ<EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD>free <20><>ʾ<EFBFBD><CABE><EFBFBD>п<EFBFBD><D0BF><EFBFBD>ʹ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ a <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> B ӵ<><D3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><D0BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD> B<><42><EFBFBD><EFBFBD>ʱ free <20><>Ϊ 4<><34><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD>ķ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD> C <20><> A<><41>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><D0BD>̶<EFBFBD><CCB6>ܳɹ<DCB3><C9B9><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD>˿<EFBFBD><CBBF>Գ<EFBFBD>ͼ a <20><>ʾ<EFBFBD><CABE>״̬ʱ<CCAC><CAB1>ȫ<EFBFBD>ġ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>壺<EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҽ<EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><EFBFBD><EFBFBD>ͻȻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD>ֵ<EFBFBD><EFBFBD>ȴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD>ʹ<EFBFBD><EFBFBD>ÿһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƹ<EFBFBD>״̬<EFBFBD>ǰ<EFBFBD>ȫ<EFBFBD>ġ<EFBFBD>
|
||||
|
||||
#### 3.2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><D0BC>㷨
|
||||
|
||||
һ<EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>мң<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һȺ<EFBFBD>ͻ<EFBFBD><EFBFBD>ֱ<EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD>㷨Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж϶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>벻<EFBFBD><EFBFBD>ȫ״̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD><EFBFBD>;ܾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD><EFBFBD>䡣
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD>ͼ c Ϊ<><CEAA><EFBFBD><EFBFBD>ȫ״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><E3B7A8><EFBFBD>ܾ<EFBFBD>֮ǰ<D6AE><C7B0><EFBFBD><EFBFBD><EFBFBD>Ӷ<F3A3ACB4><D3B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ c <20>е<EFBFBD>״̬<D7B4><CCAC>
|
||||
|
||||
#### 3.3 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD>м<EFBFBD><D0BC>㷨
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̣<EFBFBD><EFBFBD>ĸ<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߵ<EFBFBD>ͼ<EFBFBD><EFBFBD>ʾ<EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD>ұߵ<EFBFBD>ͼ<EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ұߵ<EFBFBD> E<><45>P <20>Լ<EFBFBD> A <20>ֱ<EFBFBD><D6B1><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD>ѷ<EFBFBD><D1B7><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4>ע<EFBFBD><D7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǿ<EFBFBD><C7BE><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD> A=(1020)<29><><EFBFBD><EFBFBD>ʾ 4 <20><><EFBFBD><EFBFBD>Դ<EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD>ʣ<EFBFBD><CAA3> 1/0/2/0<><30>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>״̬<EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ұߵľ<DFB5><C4BE><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>С<EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> A<><41><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD>ôϵͳ<CFB5><CDB3><EFBFBD>ᷢ<EFBFBD><E1B7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<D7B4>Dz<EFBFBD><C7B2><EFBFBD>ȫ<EFBFBD>ġ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD>ý<EFBFBD><C3BD>̱<EFBFBD><CCB1><EFBFBD>Ϊ<EFBFBD><CEAA>ֹ<EFBFBD><D6B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѷ<EFBFBD><D1B7><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD>ӵ<EFBFBD> A <20>С<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> <20>ظ<EFBFBD><D8B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><D0BD>̶<EFBFBD><CCB6><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>ֹ<EFBFBD><D6B9><EFBFBD><EFBFBD>״̬ʱ<CCAC><CAB1>ȫ<EFBFBD>ġ<EFBFBD>
|
||||
|
||||
### 4. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD>֯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>ʩ<EFBFBD><EFBFBD><EFBFBD>лָ<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
#### 4.1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD>˼<EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD>ܹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㣬<EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>У<EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>С<EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD>ͼ<EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>
|
||||
|
||||
E <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD>
|
||||
A <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դʣ<D4B4><CAA3><EFBFBD><EFBFBD>
|
||||
C <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>е<EFBFBD><D0B5><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿһ<C3BF>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
R <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> P<sub>1</sub> <20><> P<sub>2</sub> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD>ò<EFBFBD><C3B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㣬ֻ<E3A3AC>н<EFBFBD><D0BD><EFBFBD> P<sub>3</sub> <20><><EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD> P<sub>3</sub> ִ<>У<EFBFBD>֮<EFBFBD><D6AE><EFBFBD>ͷ<EFBFBD> P<sub>3</sub> ӵ<>е<EFBFBD><D0B5><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD>ʱ A = (2 2 2 0)<29><>P<sub>1</sub> <20><><EFBFBD><EFBFBD>ִ<EFBFBD>У<EFBFBD>ִ<EFBFBD>к<EFBFBD><D0BA>ͷ<EFBFBD> P<sub>1</sub> ӵ<>е<EFBFBD><D0B5><EFBFBD>Դ<EFBFBD><D4B4> A = (4 2 2 2) <20><>P<sub>2</sub> Ҳ<><D2B2><EFBFBD><EFBFBD>ִ<EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD>н<EFBFBD><D0BD>̶<EFBFBD><CCB6><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><CBB3>ִ<EFBFBD>У<EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD>㷨<EFBFBD>ܽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>
|
||||
|
||||
ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǣ<EFBFBD>ִ<EFBFBD>й<EFBFBD><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><EFBFBD>ܱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD>û<EFBFBD>б<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǵĽ<EFBFBD><EFBFBD>̶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̡<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> Ѱ<><D1B0>һ<EFBFBD><D2BB>û<EFBFBD>б<EFBFBD><D0B1>ǵĽ<C7B5><C4BD><EFBFBD> P<sub>i</sub><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԴС<EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD> A<><41>
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>̣<EFBFBD><CCA3><EFBFBD>ô<EFBFBD><C3B4> C <20><><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD> i <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD> A <20>У<EFBFBD><D0A3><EFBFBD><EFBFBD>Ǹý<C7B8><C3BD>̣<EFBFBD><CCA3><EFBFBD>ת<EFBFBD><D7AA> <20>١<EFBFBD>
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>̣<EFBFBD><CCA3>㷨<EFBFBD><E3B7A8>ֹ<EFBFBD><D6B9>
|
||||
|
||||
#### 4.2 <20><><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>ָ<EFBFBD>
|
||||
<EFBFBD><EFBFBD> ɱ<><C9B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>
|
||||
|
||||
ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD>ռ䣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ռ䱻<EFBFBD>ָ<EFBFBD><EFBFBD>ɶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>飬ÿһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊһ ҳ<><D2B3><EFBFBD><EFBFBD>Щҳ<D0A9><D2B3>ӳ<EFBFBD>䵽<EFBFBD><E4B5BD><EFBFBD><EFBFBD><EFBFBD>ڴ棬<DAB4><E6A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫӳ<D2AA>䵽<EFBFBD><E4B5BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ棬Ҳ<E6A3AC><D2B2><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>ҳ<EFBFBD><D2B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4>С<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>еĵ<EFBFBD>ַ<EFBFBD>ռ<EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>б<EFBFBD>Ҫ<EFBFBD><EFBFBD>ӳ<EFBFBD>䡣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ֲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>еĵ<EFBFBD>ַ<EFBFBD>ռ<EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ɲ<EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȱʧ<EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD>װ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ沢<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD>ʧ<EFBFBD>ܵ<EFBFBD>ָ<EFBFBD>
|
||||
|
||||
## <20><>ҳ<EFBFBD><D2B3><EFBFBD>ֶ<EFBFBD>
|
||||
|
||||
### 1. <20><>ҳ
|
||||
|
||||
<EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD>ռ䱻<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD>ɹ̶<EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>أ<EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD>ֳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>飬ҳ<EFBFBD>Ϳ<EFBFBD><EFBFBD>Ĵ<EFBFBD>С<EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>ɽ<EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɢ<EFBFBD><EFBFBD><EFBFBD>䣬<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ά<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><EFBFBD>
|
||||
|
||||
### 2. <20>ֶ<EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD>ͼΪһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 4 <20><><EFBFBD><EFBFBD><EFBFBD>Ƕ<EFBFBD>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>÷<EFBFBD>ҳϵͳ<CFB5><CDB3>һά<D2BB><CEAC>ַ<EFBFBD>ռ䣬<D5BC><E4A3AC>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><D8B5>ᵼ<EFBFBD>¸<EFBFBD><C2B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><C4B3>֡<EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD>ֶε<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֳɶΣ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ι<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD>ռ䡣ÿ<EFBFBD><EFBFBD><EFBFBD>εij<EFBFBD><EFBFBD>ȿ<EFBFBD><EFBFBD>Բ<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD>̬<EFBFBD>ı䡣
|
||||
|
||||
ÿ<EFBFBD><EFBFBD><EFBFBD>ζ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֡<EFBFBD>
|
||||
|
||||
### 3. <20><>ҳʽ
|
||||
|
||||
<EFBFBD>÷ֶη<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>洢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD>ռ䰴<EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD>ֳɻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĶΣ<EFBFBD><EFBFBD><EFBFBD>ÿһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٰ<EFBFBD>ÿ<EFBFBD>ηֳɹ̶<EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD>÷<EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>档<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD>ȵĴ洢<EFBFBD>飬<EFBFBD><EFBFBD>װ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD>һҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD>еġ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֿɰ<EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ֹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 4. <20><>ҳ<EFBFBD><D2B3><EFBFBD>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> <20>Գ<EFBFBD><D4B3><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD><CDB8><EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD>ҳ<D2B3><CDB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿֶ<C7B7><D6B6><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD>Ρ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> <20><>ַ<EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>ά<EFBFBD>ȣ<EFBFBD><C8A3><EFBFBD>ҳ<EFBFBD><D2B3>һά<D2BB><CEAC>ַ<EFBFBD>ռ䣬<D5BC>ֶ<EFBFBD><D6B6>Ƕ<EFBFBD>ά<EFBFBD>ġ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> <20><>С<EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD>Ըı䣺ҳ<E4A3BA>Ĵ<EFBFBD>С<EFBFBD><D0A1><EFBFBD>ɱ䣬<C9B1>εĴ<CEB5>С<EFBFBD><D0A1><EFBFBD>Զ<EFBFBD>̬<EFBFBD>ı䡣
|
||||
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD>ֵ<EFBFBD>ԭ<EFBFBD><EFBFBD>ҳ<EFBFBD><D2B3>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ棬<DAB4>Ӷ<EFBFBD><D3B6><EFBFBD><EFBFBD>ø<EFBFBD><C3B8><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD>ռ䣻<D5BC>ֶ<EFBFBD><D6B6><EFBFBD>Ҫ<EFBFBD><D2AA>Ϊ<EFBFBD><CEAA>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><DDBF>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><DFBC>϶<EFBFBD><CFB6><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD>ռ䲢<D5BC><E4B2A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڹ<EFBFBD><DAB9><EFBFBD><EFBFBD>ͱ<EFBFBD><CDB1><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## ҳ<><D2B3><EFBFBD>û<EFBFBD><C3BB>㷨
|
||||
|
||||
<EFBFBD>ڳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ҳ<EFBFBD>治<EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ棬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>пռ<EFBFBD>ʱ<EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ҳ<EFBFBD>浽<EFBFBD><EFBFBD><EFBFBD>̶Ի<EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>С<EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҪĿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹҳ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>Ƶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵ȱҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 1. <20><><EFBFBD>ѣ<EFBFBD>Optimal<61><6C>
|
||||
|
||||
<EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD>潫<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD>ٱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD>֤<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>ȱҳ<EFBFBD>ʡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>֪<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ᱻ<EFBFBD>ٷ<EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ϵͳΪij<EFBFBD><EFBFBD><EFBFBD>̷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>飬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>
|
||||
|
||||
7<EFBFBD><EFBFBD>0<EFBFBD><EFBFBD>1<EFBFBD><EFBFBD>2<EFBFBD><EFBFBD>0<EFBFBD><EFBFBD>3<EFBFBD><EFBFBD>0<EFBFBD><EFBFBD>4<EFBFBD><EFBFBD>2<EFBFBD><EFBFBD>3<EFBFBD><EFBFBD>0<EFBFBD><EFBFBD>3<EFBFBD><EFBFBD>2<EFBFBD><EFBFBD>1<EFBFBD><EFBFBD>2<EFBFBD><EFBFBD>0<EFBFBD><EFBFBD>1<EFBFBD><EFBFBD>7<EFBFBD><EFBFBD>0<EFBFBD><EFBFBD>1
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>Ƚ<EFBFBD> 7,0,1 <20><><EFBFBD><EFBFBD>ҳ<EFBFBD><D2B3>װ<EFBFBD><D7B0><EFBFBD>ڴ档<DAB4><E6A1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>ҳ<EFBFBD><D2B3> 2 ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȱҳ<C8B1>жϣ<D0B6><CFA3>Ὣҳ<E1BDAB><D2B3> 7 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊҳ<CEAA><D2B3> 7 <20>ٴα<D9B4><CEB1><EFBFBD><EFBFBD>ʵ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EEB3A4>
|
||||
|
||||
### 2. <20>Ƚ<EFBFBD><C8BD>ȳ<EFBFBD><C8B3><EFBFBD>FIFO<46><4F>
|
||||
|
||||
<EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƚ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD>档
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD>Ὣ<EFBFBD><EFBFBD>Щ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ҳ<EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD>ʹȱҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߡ<EFBFBD>
|
||||
|
||||
### 3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δʹ<CEB4>ã<EFBFBD>LRU<52><55>Least Recently Used<65><64>
|
||||
|
||||
<EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD>֪<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫʹ<EFBFBD>õ<EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><EFBFBD><EFBFBD>֪<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȥʹ<EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>LRU <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δʹ<CEB4>õ<EFBFBD>ҳ<EFBFBD>滻<EFBFBD><E6BBBB><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><EFBFBD>ʵ<EFBFBD>ָ<EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD>ջ<EFBFBD>д洢ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD>š<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̷<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD>Ŵ<EFBFBD>ջ<EFBFBD>Ƴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѹ<EFBFBD><EFBFBD>ջ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δʹ<EFBFBD>õ<EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD>ס<EFBFBD>
|
||||
|
||||
4<EFBFBD><EFBFBD>7<EFBFBD><EFBFBD>0<EFBFBD><EFBFBD>7<EFBFBD><EFBFBD>1<EFBFBD><EFBFBD>0<EFBFBD><EFBFBD>1<EFBFBD><EFBFBD>2<EFBFBD><EFBFBD>1<EFBFBD><EFBFBD>2<EFBFBD><EFBFBD>6
|
||||
|
||||
|
||||
|
||||
### 4. ʱ<>ӣ<EFBFBD>Clock<63><6B>
|
||||
|
||||
Clock ҳ<><D2B3><EFBFBD>û<EFBFBD><C3BB>㷨<EFBFBD><E3B7A8>Ҫ<EFBFBD>õ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ҳ<EFBFBD>汻<EFBFBD><E6B1BB><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>Ϊ 1<><31>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӳ<EFBFBD>һ<EFBFBD><EFBFBD>ѭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD>ȱҳ<EFBFBD>жϷ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>鵱ǰָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>ҳ<EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λΪ 0<><30><EFBFBD>ͽ<EFBFBD><CDBD><EFBFBD>ҳ<EFBFBD>滻<EFBFBD><E6BBBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD>ķ<EFBFBD><C4B7><EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD>Ϊ 0<><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҳ<EFBFBD><D2B3><EFBFBD>ڶ<EFBFBD><DAB6>εĻ<CEB5><C4BB>ᣬ<EFBFBD>ƶ<EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>顣
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>豸<EFBFBD><E8B1B8><EFBFBD><EFBFBD>
|
||||
|
||||
## <20><><EFBFBD>̵<EFBFBD><CCB5><EFBFBD><EFBFBD>㷨
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʴ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD>̵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƶԴ<EFBFBD><EFBFBD>̵ķ<EFBFBD><EFBFBD>ʡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>̵<EFBFBD><EFBFBD>ȵ<EFBFBD><EFBFBD><EFBFBD>ҪĿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD>̵<EFBFBD>ƽ<EFBFBD><EFBFBD>Ѱ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>١<EFBFBD>
|
||||
|
||||
### 1. <20><><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD>FCFS<46><53>First Come First Serverd<72><64>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʴ<EFBFBD><EFBFBD>̵<EFBFBD><EFBFBD>Ⱥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD>ŵ<EFBFBD><EFBFBD>ǹ<EFBFBD>ƽ<EFBFBD>ͼ<EFBFBD>ȱ<EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD><EFBFBD><EFBFBD>Ϊδ<EFBFBD><EFBFBD>Ѱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><EFBFBD>Ż<EFBFBD><EFBFBD><EFBFBD>ʹƽ<EFBFBD><EFBFBD>Ѱ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܽϳ<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 2. <20><><EFBFBD><EFBFBD>Ѱ<EFBFBD><D1B0>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>SSTF<54><46>Shortest Seek Time First<73><74>
|
||||
|
||||
Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵĴŵ<EFBFBD><EFBFBD>뵱ǰ<EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD>ڴŵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƚ<EFBFBD><EFBFBD>е<EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܱ<EFBFBD>֤ƽ<EFBFBD><EFBFBD>Ѱ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̣<EFBFBD><EFBFBD><EFBFBD><EFBFBD>DZ<EFBFBD> FCFS <20>úܶࡣ
|
||||
|
||||
### 3. ɨ<><C9A8><EFBFBD>㷨<EFBFBD><E3B7A8>SCAN<41><4E>
|
||||
|
||||
SSTF <20><><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD>м<EFBFBD><D0BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><F3A1A3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>½<EFBFBD><C2BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵĴŵ<C4B4><C5B5><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD>ڴŵ<DAB4><C5B5>ľ<EFBFBD><C4BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DZ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ڵȴ<DAB5><C8B4>Ľ<EFBFBD><C4BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><C4BD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD>ȴ<EFBFBD><C8B4>Ľ<EFBFBD><C4BD>̻<EFBFBD>һֱ<D2BB>ȴ<EFBFBD><C8B4><EFBFBD>ȥ<EFBFBD><C8A5>
|
||||
|
||||
SCAN <20>㷨<EFBFBD><E3B7A8> SSTF <20>㷨֮<E3B7A8>Ͽ<EFBFBD><CFBF><EFBFBD><EFBFBD>˴<EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵĴŵ<C4B4><C5B5>ڴ<EFBFBD>ͷ<EFBFBD><CDB7>ǰ<EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD><CFB2>ܹ<EFBFBD><DCB9>õ<EFBFBD><C3B5><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ôһ<C3B4><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵĴŵ<C4B4>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD>ȡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><EFBFBD>ƶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD>ݵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֳ<EFBFBD><EFBFBD><EFBFBD> SCAN <20>㷨Ϊ<E3B7A8><CEAA><EFBFBD>ݵ<EFBFBD><DDB5><EFBFBD><EFBFBD>㷨<EFBFBD><E3B7A8>
|
||||
|
||||
### 4. ѭ<><D1AD>ɨ<EFBFBD><C9A8><EFBFBD>㷨<EFBFBD><E3B7A8>CSCAN<41><4E>
|
||||
|
||||
CSCAN <20><> SCAN <20><><EFBFBD><EFBFBD><EFBFBD>˸Ķ<CBB8><C4B6><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>ͷʼ<CDB7><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><C6B6><EFBFBD>
|
||||
|
||||
# <20>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
- Tanenbaum A S, Bos H. Modern operating systems[M]. Prentice Hall Press, 2014.
|
||||
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20>ܷ<EFBFBD><DCB7><EFBFBD>, <20><>С<EFBFBD><D0A1>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ[M]. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿƼ<D3BF><C6BC><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, 2001.
|
||||
|
||||
- Bryant, R. E., & O<><4F>Hallaron, D. R. (2004). <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ.
|
||||
|
||||
- [С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˢ<EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD>](http://wdxtub.com/interview/index.html)
|
||||
|
||||
- [<EFBFBD><EFBFBD><EFBFBD>̼<EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>ŷ<EFBFBD>ʽ](http://blog.csdn.net/yufaw/article/details/7409596)
|
||||
841
notes/计算机网络.md
Normal file
841
notes/计算机网络.md
Normal file
@ -0,0 +1,841 @@
|
||||
<!-- GFM-TOC -->
|
||||
* [<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>](#<23><>һ<EFBFBD><D2BB>-<2D><><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [ISP](#isp)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>ŷ<EFBFBD>ʽ](#<23><><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>ͨ<EFBFBD>ŷ<EFBFBD>ʽ)
|
||||
* [<EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>齻<EFBFBD><EFBFBD>](#<23><>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>齻<EFBFBD><E9BDBB>)
|
||||
* [1. <20><>·<EFBFBD><C2B7><EFBFBD><EFBFBD>](#1-<2D><>·<EFBFBD><C2B7><EFBFBD><EFBFBD>)
|
||||
* [2. <20><><EFBFBD>Ľ<EFBFBD><C4BD><EFBFBD>](#2-<2D><><EFBFBD>Ľ<EFBFBD><C4BD><EFBFBD>)
|
||||
* [3. <20><><EFBFBD>齻<EFBFBD><E9BDBB>](#3-<2D><><EFBFBD>齻<EFBFBD><E9BDBB>)
|
||||
* [ʱ<EFBFBD><EFBFBD>](#ʱ<><CAB1>)
|
||||
* [1. <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>](#1-<2D><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>)
|
||||
* [2. <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>](#2-<2D><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>)
|
||||
* [3. <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>](#3-<2D><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>)
|
||||
* [4. <20>Ŷ<EFBFBD>ʱ<EFBFBD><CAB1>](#4-<2D>Ŷ<EFBFBD>ʱ<EFBFBD><CAB1>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD>ṹ](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD>ṹ)
|
||||
* [1. <20>߲<EFBFBD>Э<EFBFBD><D0AD>](#1-<2D>߲<EFBFBD>Э<EFBFBD><D0AD>)
|
||||
* [2. <20><><EFBFBD><EFBFBD>Э<EFBFBD><D0AD>](#2-<2D><><EFBFBD><EFBFBD>Э<EFBFBD><D0AD>)
|
||||
* [3. <20><><EFBFBD><EFBFBD><EFBFBD>ڸ<EFBFBD><DAB8><EFBFBD>֮<EFBFBD><D6AE><EFBFBD>Ĵ<EFBFBD><C4B4>ݹ<EFBFBD><DDB9><EFBFBD>](#3-<2D><><EFBFBD><EFBFBD><EFBFBD>ڸ<EFBFBD><DAB8><EFBFBD>֮<EFBFBD><D6AE><EFBFBD>Ĵ<EFBFBD><C4B4>ݹ<EFBFBD><DDB9><EFBFBD>)
|
||||
* [4. TCP/IP <20><>ϵ<EFBFBD>ṹ](#4-tcpip-<2D><>ϵ<EFBFBD>ṹ)
|
||||
* [<EFBFBD>ڶ<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23>ڶ<EFBFBD><DAB6><EFBFBD>-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [ͨ<EFBFBD>ŷ<EFBFBD>ʽ](#ͨ<>ŷ<EFBFBD>ʽ)
|
||||
* [<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD>ŵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD>](#<23>ŵ<EFBFBD><C5B5><EFBFBD><EFBFBD>ü<EFBFBD><C3BC><EFBFBD>)
|
||||
* [1. Ƶ<>ָ<EFBFBD><D6B8>á<EFBFBD>ʱ<EFBFBD>ָ<EFBFBD><D6B8><EFBFBD>](#1-Ƶ<>ָ<EFBFBD><D6B8><EFBFBD>ʱ<EFBFBD>ָ<EFBFBD><D6B8><EFBFBD>)
|
||||
* [2. ͳ<><CDB3>ʱ<EFBFBD>ָ<EFBFBD><D6B8><EFBFBD>](#2-ͳ<><CDB3>ʱ<EFBFBD>ָ<EFBFBD><D6B8><EFBFBD>)
|
||||
* [3. <20><><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD>](#3-<2D><><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD>)
|
||||
* [4. <20><><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD>](#4-<2D><><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [1. <20><>װ<EFBFBD><D7B0>֡](#1-<2D><>װ<EFBFBD><D7B0>֡)
|
||||
* [2. <><CDB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#2-<><CDB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#3-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD>Ե<EFBFBD><EFBFBD>ŵ<EFBFBD> -PPP Э<><D0AD>](#<23><><EFBFBD>Ե<EFBFBD><D4B5>ŵ<EFBFBD>--ppp-Э<><D0AD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD>㲥<EFBFBD>ŵ<EFBFBD> -CSMA/CD Э<><D0AD>](#<23>㲥<EFBFBD>ŵ<EFBFBD>--csmacd-Э<><D0AD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [MAC <20><>](#mac-<2D><>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD> IP <20><><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>Э<EFBFBD><D0AD>-ip-<2D><><EFBFBD><EFBFBD>)
|
||||
* [IP <20><><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD>ʽ](#ip-<2D><><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD>ʽ)
|
||||
* [IP <20><>ַ<EFBFBD><D6B7>ַ](#ip-<2D><>ַ<EFBFBD><D6B7>ַ)
|
||||
* [1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ](#1-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-ip-<2D><>ַ)
|
||||
* [2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#2-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [3. <20><EFBFBD><DEB7><EFBFBD><EFBFBD><EFBFBD>ַ CIDR<44><52><EFBFBD><EFBFBD><EFBFBD>ɳ<EFBFBD><C9B3><EFBFBD><EFBFBD><EFBFBD>](#3-<2D><EFBFBD><DEB7><EFBFBD><EFBFBD><EFBFBD>ַ-cidr<64><72><EFBFBD><EFBFBD><EFBFBD>ɳ<EFBFBD><C9B3><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [IP <20><>ַ<EFBFBD><D6B7> MAC <20><>ַ](#ip-<2D><>ַ<EFBFBD><D6B7>-mac-<2D><>ַ)
|
||||
* [<EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD> ARP](#<23><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Э<EFBFBD><D0AD>-arp)
|
||||
* [·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľṹ](#·<><C2B7><EFBFBD><EFBFBD><EFBFBD>Ľṹ)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#·<><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [·<EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD>](#·<><C2B7>ѡ<EFBFBD><D1A1>Э<EFBFBD><D0AD>)
|
||||
* [1. <20>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> RIP](#1-<2D>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD>-rip)
|
||||
* [2. <20>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> OSPF](#2-<2D>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD>-ospf)
|
||||
* [3. <20>ⲿ<EFBFBD><E2B2BF><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> BGP](#3-<2D>ⲿ<EFBFBD><E2B2BF><EFBFBD><EFBFBD>Э<EFBFBD><D0AD>-bgp)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD>ʿ<EFBFBD><EFBFBD>Ʊ<EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD> ICMP](#<23><><EFBFBD>ʿ<EFBFBD><CABF>Ʊ<EFBFBD><C6B1><EFBFBD>Э<EFBFBD><D0AD>-icmp)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̽<EFBFBD><EFBFBD> PING](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̽<EFBFBD><CCBD>-ping)
|
||||
* [IP <20>ಥ](#ip-<2D>ಥ)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ר<EFBFBD><EFBFBD><EFBFBD><EFBFBD> VPN](#<23><><EFBFBD><EFBFBD>ר<EFBFBD><D7A8><EFBFBD><EFBFBD>-vpn)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַת<EFBFBD><EFBFBD> NAT](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַת<D6B7><D7AA>-nat)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [UDP <20><> TCP <20><><EFBFBD>ص<EFBFBD>](#udp-<2D><>-tcp-<2D><><EFBFBD>ص<EFBFBD>)
|
||||
* [UDP <20>ײ<EFBFBD><D7B2><EFBFBD>ʽ](#udp-<2D>ײ<EFBFBD><D7B2><EFBFBD>ʽ)
|
||||
* [TCP <20>ײ<EFBFBD><D7B2><EFBFBD>ʽ](#tcp-<2D>ײ<EFBFBD><D7B2><EFBFBD>ʽ)
|
||||
* [TCP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#tcp-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [TCP <20><><EFBFBD>Ĵλ<C4B4><CEBB><EFBFBD>](#tcp-<2D><><EFBFBD>Ĵλ<C4B4><CEBB><EFBFBD>)
|
||||
* [TCP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#tcp-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [TCP <20>ɿ<EFBFBD><C9BF><EFBFBD><EFBFBD><EFBFBD>](#tcp-<2D>ɿ<EFBFBD><C9BF><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [TCP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#tcp-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [TCP ӵ<><D3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#tcp-ӵ<><D3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD>ش<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>](#<23><><EFBFBD>ش<EFBFBD><D8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Ӧ<>ò<EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-Ӧ<>ò<EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ DNS](#<23><><EFBFBD><EFBFBD>ϵͳ-dns)
|
||||
* [1. <20><><EFBFBD>νṹ](#1-<2D><><EFBFBD>νṹ)
|
||||
* [2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#2-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD> FTP](#<23>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD>-ftp)
|
||||
* [Զ<EFBFBD><EFBFBD><EFBFBD>ն<EFBFBD>Э<EFBFBD><EFBFBD> TELNET](#Զ<><D4B6><EFBFBD>ն<EFBFBD>Э<EFBFBD><D0AD>-telnet)
|
||||
* [<EFBFBD><EFBFBD>ά<EFBFBD><EFBFBD> WWW](#<23><>ά<EFBFBD><CEAC>-www)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD>Э<EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD>Э<EFBFBD><D0AD>)
|
||||
* [POP3](#pop3)
|
||||
* [IMAP](#imap)
|
||||
* [SMTP](#smtp)
|
||||
* [<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD> DHCP](#<23><>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD>-dhcp)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD>Ե㴫<EFBFBD><EFBFBD> P2P](#<23><><EFBFBD>Ե㴫<D4B5><E3B4AB>-p2p)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> www.baidu.com <20><>ִ<EFBFBD>е<EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>-wwwbaiducom-<2D><>ִ<EFBFBD>е<EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>)
|
||||
* [<EFBFBD><EFBFBD><EFBFBD>ö˿<EFBFBD>](#<23><><EFBFBD>ö˿<C3B6>)
|
||||
* [<EFBFBD>ο<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD>)
|
||||
<!-- GFM-TOC -->
|
||||
|
||||
# <20><>һ<EFBFBD><D2BB> <20><><EFBFBD><EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰѶ<EFBFBD><EFBFBD>ֲ<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˻<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>硣
|
||||
|
||||
|
||||
|
||||
## ISP
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD><EFBFBD> ISP <20><><EFBFBD>Դӻ<D4B4><D3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7>ͬʱӵ<CAB1><D3B5>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>·<EFBFBD>Լ<EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>豸<EFBFBD><E8B1B8><EFBFBD><EFBFBD><EFBFBD>˻<EFBFBD><CBBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ISP <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ķ<EFBFBD><C4B7>þͿ<C3BE><CDBF>Խ<EFBFBD><D4BD>뻥<EFBFBD><EBBBA5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
Ŀǰ<EFBFBD>Ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>ֶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ISP <20>ṹ<EFBFBD><E1B9B9>ISP <20><><EFBFBD>ݸ<EFBFBD><DDB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD>С<EFBFBD><D0A1>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD> ISP<53><50><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ISP <20>ͱ<EFBFBD><CDB1><EFBFBD> ISP<53><50>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IXP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>þ<EFBFBD><C3BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD><EFBFBD>顣
|
||||
|
||||
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
1. <20><>Ե<EFBFBD><D4B5><EFBFBD>֣<EFBFBD><D6A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1>ʹ<EFBFBD>ã<EFBFBD>
|
||||
2. <20><><EFBFBD>IJ<EFBFBD><C4B2>֣<EFBFBD><D6A3>ɴ<EFBFBD><C9B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD><D0A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɡ<EFBFBD>Ϊ<EFBFBD><CEAA>Ե<EFBFBD><D4B5><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD><E1B9A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
## <20><><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>ͨ<EFBFBD>ŷ<EFBFBD>ʽ
|
||||
|
||||
**1. <20>ͻ<EFBFBD> - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>C/S<><53>**
|
||||
|
||||
<EFBFBD>ͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**2. <20>Եȣ<D4B5>P2P<32><50>**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֿͻ<EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## <20><>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>齻<EFBFBD><E9BDBB>
|
||||
|
||||
|
||||
|
||||
### 1. <20><>·<EFBFBD><C2B7><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ绰ͨ<EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>Ҫͨ<EFBFBD><EFBFBD>֮ǰ<EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ר<EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>Ź<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>ռ<EFBFBD>ø<EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>ŵĹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һֱ<EFBFBD><EFBFBD>ʹ<EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʺܵͣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 10%<25><>
|
||||
|
||||
### 2. <20><><EFBFBD>Ľ<EFBFBD><C4BD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD>ͨ<EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD>ʾֽ<EFBFBD><EFBFBD>յ<EFBFBD>һ<EFBFBD>ݱ<EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȴ洢<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD>ĵ<EFBFBD>ѡ<EFBFBD><EFBFBD><EFBFBD>Եذѱ<EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>Ŀ<EFBFBD>ĵأ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̾<EFBFBD><EFBFBD>Ǵ洢ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̡<EFBFBD>
|
||||
|
||||
### 3. <20><><EFBFBD>齻<EFBFBD><E9BDBB>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>齻<EFBFBD><EFBFBD>Ҳʹ<EFBFBD><EFBFBD><EFBFBD>˴洢ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DZ<EFBFBD><EFBFBD>ġ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD>Ϊһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><EFBFBD>ܺܳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>Ƚ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>з֣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD>зֵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD>ͳ<EFBFBD>Ϊ<EFBFBD>˷<EFBFBD><EFBFBD>飬<EFBFBD>ײ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>ַ<EFBFBD>ȿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD>洢ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ϴ<EFBFBD><EFBFBD>Ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><EFBFBD>飬Ҳ<EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>齻<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫռ<EFBFBD>ö˵<EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȱ<EFBFBD><EFBFBD>ĸ<EFBFBD>С<EFBFBD><EFBFBD><EFBFBD>洢ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶ<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD>졣
|
||||
|
||||
## ʱ<><CAB1>
|
||||
|
||||
<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD> = <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> + <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> + <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> + <20>Ŷ<EFBFBD>ʱ<EFBFBD><CAB1>
|
||||
|
||||
|
||||
|
||||
|
||||
### 1. <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֡<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>ʱ<EFBFBD>䡣
|
||||
|
||||
}{v(bit/s)})
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> l <20><>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>֡<EFBFBD>ij<EFBFBD><C4B3>ȣ<EFBFBD>v <20><>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʡ<EFBFBD>
|
||||
|
||||
### 2. <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>Ų<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ѵ<EFBFBD>ʱ<EFBFBD>䣬<EFBFBD><EFBFBD><EFBFBD>Ų<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶȽӽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>١<EFBFBD>
|
||||
|
||||
}{v(m/s)})
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> l <20><>ʾ<EFBFBD>ŵ<EFBFBD><C5B5><EFBFBD><EFBFBD>ȣ<EFBFBD>v <20><>ʾ<EFBFBD><CABE><EFBFBD>Ų<EFBFBD><C5B2><EFBFBD><EFBFBD>ŵ<EFBFBD><C5B5>ϵĴ<CFB5><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʡ<EFBFBD>
|
||||
|
||||
### 3. <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>ʱ<EFBFBD>䣬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD>ݲ<EFBFBD><EFBFBD>ֵȡ<EFBFBD>
|
||||
|
||||
### 4. <20>Ŷ<EFBFBD>ʱ<EFBFBD><CAB1>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>к<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŷӵȴ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>䣬ȡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>統ǰ<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD>ṹ
|
||||
|
||||
|
||||
|
||||
### 1. <20>߲<EFBFBD>Э<EFBFBD><D0AD>
|
||||
|
||||
<EFBFBD><EFBFBD>ͼ a <20><>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD>ʾ<EFBFBD><CABE><EFBFBD>ͻỰ<CDBB><E1BBB0><EFBFBD><EFBFBD>;<EFBFBD><CDBE><EFBFBD>£<EFBFBD>
|
||||
|
||||
1. <20><>ʾ<EFBFBD>㣺<EFBFBD><E3A3BA>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFB7A8><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD>ǵĹ<C7B5><C4B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܽ<EFBFBD><DCBD>ܡ<EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD><EFBFBD>롢ѹ<EBA1A2><D1B9><EFBFBD><EFBFBD>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD>
|
||||
2. <20>Ự<EFBFBD>㣺<EFBFBD><E3A3BA>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5>û<EFBFBD>֮<EFBFBD>佨<EFBFBD><E4BDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ự<EFBFBD><E1BBB0>
|
||||
|
||||
### 2. <20><><EFBFBD><EFBFBD>Э<EFBFBD><D0AD>
|
||||
|
||||
1. Ӧ<>ò㣺Ϊ<E3A3BA>ض<EFBFBD>Ӧ<EFBFBD>ó<EFBFBD><C3B3><EFBFBD><EFBFBD>ṩ<EFBFBD><E1B9A9><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> HTTP<54><50>DNS <20>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>ݵ<EFBFBD>λΪ<CEBB><CEAA><EFBFBD>ġ<EFBFBD>
|
||||
|
||||
2. <20><><EFBFBD><EFBFBD><EFBFBD>㣺<EFBFBD>ṩ<EFBFBD><E1B9A9><EFBFBD>ǽ<EFBFBD><C7BD>̼<EFBFBD><CCBC><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ò<EFBFBD>Э<EFBFBD><D0AD><EFBFBD>ܶ࣬<DCB6><E0A3AC><EFBFBD><EFBFBD>ͨ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD><EFBFBD>Ϳ<EFBFBD><CDBF><EFBFBD>֧<EFBFBD>ֲ<EFBFBD><D6B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ò<EFBFBD>Э<EFBFBD>顣<EFBFBD><E9A1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD>飺<EFBFBD><E9A3BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> TCP<43><50><EFBFBD>ṩ<EFBFBD><E1B9A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӡ<EFBFBD><D3A1>ɿ<EFBFBD><C9BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD>λΪ<CEBB><CEAA><EFBFBD>ĶΣ<C4B6><CEA3>û<EFBFBD><C3BB><EFBFBD><EFBFBD>ݱ<EFBFBD>Э<EFBFBD><D0AD> UDP<44><50><EFBFBD>ṩ<EFBFBD><E1B9A9><EFBFBD><EFBFBD><EFBFBD>ӡ<EFBFBD><D3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŭ<EFBFBD><C5AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD>λΪ<CEBB>û<EFBFBD><C3BB><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD>
|
||||
|
||||
3. <20><><EFBFBD><EFBFBD><EFBFBD>㣺Ϊ<E3A3BA><CEAA><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD>ṩ<EFBFBD><E1B9A9><EFBFBD><EFBFBD><F1A3ACB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>еĽ<D0B5><C4BD><EFBFBD><EFBFBD>ṩ<EFBFBD><E1B9A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><C4B1>Ķλ<C4B6><CEBB><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD>װ<EFBFBD>ɷ<EFBFBD><C9B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>䡣
|
||||
|
||||
4. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>㣺<EFBFBD><E3A3BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԵĻ<D4B5><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD>䣬<EFBFBD><E4A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>кܶ<D0BA><DCB6><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD>·<EFBFBD><C2B7>Э<EFBFBD><D0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>ڽ<EFBFBD><DABD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD>ṩ<EFBFBD><E1B9A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㴫<EFBFBD><E3B4AB><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD>װ<EFBFBD><D7B0>֡<EFBFBD><D6A1>
|
||||
|
||||
5. <20><><EFBFBD><EFBFBD><EFBFBD>㣺<EFBFBD><E3A3BA><EFBFBD>ǵ<EFBFBD><C7B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD><DAB4><EFBFBD>ý<EFBFBD><C3BD><EFBFBD>ϴ<EFBFBD><CFB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD>ý<EFBFBD>塣<EFBFBD><E5A1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǿ<EFBFBD><C7BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD>ý<EFBFBD><C3BD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD>ֶεIJ<CEB5><C4B2>죬ʹ<ECA3AC><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD>о<EFBFBD><D0BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD><D0A9><EFBFBD>졣
|
||||
|
||||
### 3. <20><><EFBFBD><EFBFBD><EFBFBD>ڸ<EFBFBD><DAB8><EFBFBD>֮<EFBFBD><D6AE><EFBFBD>Ĵ<EFBFBD><C4B4>ݹ<EFBFBD><DDB9><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>µĹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>²<EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>β<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵĹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD><EFBFBD>ϲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><EFBFBD><EFBFBD>β<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
·<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD>飬<EFBFBD><EFBFBD>Ϊ·<EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҪΪ<EFBFBD><EFBFBD><EFBFBD>̻<EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
### 4. TCP/IP <20><>ϵ<EFBFBD>ṹ
|
||||
|
||||
<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD>IJ㣬<EFBFBD>൱<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿڲ㡣
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD> TCP/IP <20><>ϵ<EFBFBD>ṹ<EFBFBD><E1B9B9><EFBFBD>ϸ<EFBFBD><CFB8><EFBFBD>ѭ OSI <20>ֲ<EFBFBD><D6B2><EFBFBD><EFBFBD>Ӧ<EEA3AC>ò<EFBFBD><C3B2><EFBFBD><EFBFBD>ܻ<EFBFBD>ֱ<EFBFBD><D6B1>ʹ<EFBFBD><CAB9> IP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿڲ㡣
|
||||
|
||||
|
||||
|
||||
TCP/IP Э<><D0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ɳ©<C9B3><C2A9>״<EFBFBD><D7B4><EFBFBD>м<EFBFBD>С<EFBFBD><D0A1><EFBFBD>ߴ<EFBFBD><DFB4><EFBFBD>IP Э<><D0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>þ<EFBFBD><C3BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>صĵ<D8B5>λ<EFBFBD><CEBB>
|
||||
|
||||
|
||||
|
||||
# <20>ڶ<EFBFBD><DAB6><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## ͨ<>ŷ<EFBFBD>ʽ
|
||||
|
||||
1. <20><><EFBFBD><EFBFBD>ͨ<EFBFBD>ţ<EFBFBD><C5A3>ֳ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD>ͨ<EFBFBD>ţ<EFBFBD>
|
||||
2. ˫<><CBAB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>ţ<EFBFBD><C5A3>ֳ<EFBFBD>Ϊ<EFBFBD><CEAA>˫<EFBFBD><CBAB>ͨ<EFBFBD>ţ<EFBFBD>
|
||||
3. ˫<><CBAB>ͬʱͨ<CAB1>ţ<EFBFBD><C5A3>ֳ<EFBFBD>Ϊȫ˫<C8AB><CBAB>ͨ<EFBFBD>š<EFBFBD>
|
||||
|
||||
## <20><>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD>
|
||||
|
||||
ģ<EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>źţ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɢ<EFBFBD><EFBFBD><EFBFBD>źš<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD>ư<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD>ת<EFBFBD><EFBFBD>Ϊģ<EFBFBD><EFBFBD><EFBFBD>źš<EFBFBD>
|
||||
|
||||
|
||||
|
||||
## <20>ŵ<EFBFBD><C5B5><EFBFBD><EFBFBD>ü<EFBFBD><C3BC><EFBFBD>
|
||||
|
||||
### 1. Ƶ<>ָ<EFBFBD><D6B8>á<EFBFBD>ʱ<EFBFBD>ָ<EFBFBD><D6B8><EFBFBD>
|
||||
|
||||
Ƶ<EFBFBD>ָ<EFBFBD><EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ռ<EFBFBD>ò<EFBFBD>ͬ<EFBFBD><EFBFBD>Ƶ<EFBFBD>ʴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>ʱ<EFBFBD>ָ<EFBFBD><EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD>ڲ<EFBFBD>ͬ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ռ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD>Ƶ<EFBFBD>ʴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>
|
||||
|
||||
ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>ţ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>ŵĹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>һֱռ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD>ͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD>û<EFBFBD><EFBFBD>Ҫһֱռ<EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>ʹ<EFBFBD>ã<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߡ<EFBFBD>
|
||||
|
||||
|
||||
|
||||
### 2. ͳ<><CDB3>ʱ<EFBFBD>ָ<EFBFBD><D6B8><EFBFBD>
|
||||
|
||||
<EFBFBD>Ƕ<EFBFBD>ʱ<EFBFBD>ָ<EFBFBD><EFBFBD>õ<EFBFBD>һ<EFBFBD>ָĽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̶<EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD>֡<EFBFBD>е<EFBFBD>λ<EFBFBD>ã<EFBFBD>ֻҪ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݾͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD>֡Ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD>
|
||||
|
||||
|
||||
|
||||
### 3. <20><><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD>ָ<EFBFBD><EFBFBD>á<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڹ<EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD>ʺܸߣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ò<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD>ʹ<EFBFBD>õĹ<EFBFBD><EFBFBD>ز<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
### 4. <20><><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD>
|
||||
|
||||
Ϊÿ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> m bit <20><><EFBFBD><EFBFBD>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><D0B5><EFBFBD>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƭ $\vec{S}$ <20><> $\vec{T}$ <20><>
|
||||
|
||||
|
||||
|
||||
Ϊ<EFBFBD>˷<EFBFBD><EFBFBD>㣬ȡ m=8<><38><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƭ $\vec{S}$ Ϊ 00011011<31><31><EFBFBD><EFBFBD>ӵ<EFBFBD>и<EFBFBD><D0B8><EFBFBD>Ƭ<EFBFBD><C6AC><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD>ͱ<EFBFBD><CDB1><EFBFBD> 1 ʱ<>ͷ<EFBFBD><CDB7><EFBFBD><CDB8><EFBFBD>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD><EFBFBD>ͱ<EFBFBD><CDB1><EFBFBD> 0 ʱ<>ͷ<EFBFBD><CDB7><EFBFBD><CDB8><EFBFBD>Ƭ<EFBFBD>ķ<EFBFBD><C4B7><EFBFBD> 11100100<30><30>
|
||||
|
||||
<EFBFBD>ڼ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD> 00011011 <20><><EFBFBD><EFBFBD> (-1 -1 -1 +1 +1 -1 +1 +1)<29><><EFBFBD><EFBFBD><EFBFBD>Եõ<D4B5>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> $\vec{S'}$ Ϊ $\vec{S}$ <20>ķ<EFBFBD><C4B7>롣
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֪<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ն<EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƭ $\vec{S}$ <20>Խ<EFBFBD><D4BD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><DDBD><EFBFBD><EFBFBD>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 0 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD>͵<EFBFBD><CDB5><EFBFBD><EFBFBD>ݣ<EFBFBD><DDA3><EFBFBD><EFBFBD><EFBFBD>Ϊ 1 <20><><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD>͵ı<CDB5><C4B1><EFBFBD> 1<><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ -1 <20><><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD>͵ı<CDB5><C4B1><EFBFBD> 0<><30>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>÷<EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊԭ<EFBFBD>ȵ<EFBFBD> m <20><><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 1. <20><>װ<EFBFBD><D7B0>֡
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㴫<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><EFBFBD><EFBFBD>β<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD><EFBFBD><EFBFBD>֡<EFBFBD>Ŀ<EFBFBD>ʼ<EFBFBD>ͽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
### 2. <><CDB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾһ<EFBFBD><EFBFBD>ʵ<EFBFBD>ʴ<EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
֡<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><EFBFBD><EFBFBD>β<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֡<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݲ<EFBFBD><EFBFBD>ֺ<EFBFBD><EFBFBD>к<EFBFBD><EFBFBD>ײ<EFBFBD>β<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD><EFBFBD>ô֡<EFBFBD>Ŀ<EFBFBD>ʼ<EFBFBD>ͽ<EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD>þͻᱻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>г<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD>β<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>þ<EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD>ټӸ<EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڽ<EFBFBD><EFBFBD>ն˽<EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ի<EFBFBD>ԭ<EFBFBD><EFBFBD>ԭʼ<EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD>Ĵ<EFBFBD><EFBFBD>ڡ<EFBFBD>
|
||||
|
||||
|
||||
|
||||
### 3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
Ŀǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD>㷺ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>飨CRC<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ز<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## <20><><EFBFBD>Ե<EFBFBD><D4B5>ŵ<EFBFBD> -PPP Э<><D0AD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>ij<EFBFBD><EFBFBD> ISP ֮<><D6AE><EFBFBD><EFBFBD><EFBFBD>ܽ<EFBFBD><DCBD>뵽<EFBFBD><EBB5BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>PPP Э<><D0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ISP <20><><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>ʱ<EFBFBD><CAB1>ʹ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7>Э<EFBFBD>顣
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD> PPP <20><>֡<EFBFBD>У<EFBFBD>F <20>ֶ<EFBFBD>Ϊ֡<CEAA>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>A <20><> C <20><>ʱû<CAB1><C3BB><EFBFBD><EFBFBD><EFBFBD>塣FCS <20><>ʹ<EFBFBD><CAB9> CRC <20>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD>Ϣ<EFBFBD>ֶεij<CEB5><C4B3>Ȳ<EFBFBD><C8B2><EFBFBD><EFBFBD><EFBFBD> 1500<30><30>
|
||||
|
||||
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
## <20>㲥<EFBFBD>ŵ<EFBFBD> -CSMA/CD Э<><D0AD>
|
||||
|
||||
<EFBFBD>ڹ㲥<EFBFBD>ŵ<EFBFBD><EFBFBD>ϣ<EFBFBD>ͬһʱ<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ̨<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>
|
||||
|
||||
CSMA/CD <20><>ʾ<EFBFBD>ز<EFBFBD><D8B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> / <20><>ײ<EFBFBD><D7B2><EFBFBD>⡣
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**<2A><>˵<EFBFBD><CBB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>磬<EFBFBD><E7A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD>ķ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϡ<EFBFBD>
|
||||
**<EFBFBD>ز<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**<2A><>ÿ<EFBFBD><C3BF>վ<EFBFBD><D5BE><EFBFBD><EFBFBD><EFBFBD>벻ͣ<EBB2BB>ؼ<EFBFBD><D8BC><EFBFBD><EFBFBD>ŵ<EFBFBD><C5B5><EFBFBD><EFBFBD>ڷ<EFBFBD><DAB7><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD><C5B5><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ã<EFBFBD><C3A3>ͱ<EFBFBD><CDB1><EFBFBD><EFBFBD>ȴ<EFBFBD><C8B4><EFBFBD>
|
||||
**<EFBFBD><EFBFBD>ײ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>**<2A><><EFBFBD>ڷ<EFBFBD><DAB7><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD><C5B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>վ<EFBFBD><D5BE><EFBFBD>ڷ<EFBFBD><DAB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD><DDA3>ͱ<EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD>Ȼÿһ<C3BF><D2BB>վ<EFBFBD>ڷ<EFBFBD><DAB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮ǰ<D6AE><C7B0><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5>Ų<EFBFBD><C5B2>Ĵ<EFBFBD><C4B4><EFBFBD>ʱ<EFBFBD>ӵĴ<D3B5><C4B4>ڣ<EFBFBD><DAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF>ܻᷢ<DCBB><E1B7A2><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2>
|
||||
|
||||
|
||||
|
||||
<EFBFBD>Ƕ˵<EFBFBD><EFBFBD>˵Ĵ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>Ϊ <20>ӣ<EFBFBD><D3A3><EFBFBD><EFBFBD>ȷ<EFBFBD><C8B7>͵<EFBFBD>վ<EFBFBD><D5BE><EFBFBD><EFBFBD><EFBFBD>ྭ<EFBFBD><E0BEAD> 2<><32> <20>Ϳ<EFBFBD><CDBF><EFBFBD>֪<EFBFBD><D6AA><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD> 2<><32> Ϊ **<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**<2A><>ֻ<EFBFBD>о<EFBFBD><D0BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>û<EFBFBD>м<EFBFBD><D0BC><EFBFBD><E2B5BD>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD><EFBFBD>ܿ϶<DCBF><CFB6><EFBFBD><EFBFBD>η<EFBFBD><CEB7>Ͳ<EFBFBD><CDB2>ᷢ<EFBFBD><E1B7A2><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ײʱ<EFBFBD><EFBFBD>վ<EFBFBD><EFBFBD>Ҫֹͣ<EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><EFBFBD>ȴ<EFBFBD>һ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ٷ<EFBFBD><EFBFBD>͡<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> **<EFBFBD>ض϶<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD>˱<EFBFBD><EFBFBD>㷨** <20><>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɢ<EFBFBD><C9A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> {0, 1, .., (2<sup>k</sup>-1)} <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> r<><72>Ȼ<EFBFBD><C8BB>ȡ r <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>ش<EFBFBD><D8B4>ȴ<EFBFBD>ʱ<EFBFBD>䡣
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD>ӱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͽ<EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߵĹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͳ<EFBFBD><EFBFBD>̫<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
## MAC <20><>
|
||||
|
||||
MAC <20><>ַ<EFBFBD><D6B7> 6 <20>ֽڣ<D6BD>48 λ<><CEBB><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ψһ<CEA8><D2BB>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ̨<D2BB><CCA8><EFBFBD><EFBFBD>ӵ<EFBFBD>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><D0B6><EFBFBD> MAC <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼDZ<CABC><C7B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ձ<EFBFBD><D5B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
MAC ֡<><D6A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϲ<EFBFBD>ʹ<EFBFBD><CAB9>ʲôЭ<C3B4>飻<EFBFBD><E9A3BB><EFBFBD><EFBFBD><EFBFBD>ֶγ<D6B6><CEB3><EFBFBD><EFBFBD><EFBFBD> 46-1500 ֮<>䣬<EFBFBD><E4A3AC><EFBFBD><EFBFBD>̫С<CCAB><D0A1><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>䣻FCS Ϊ֡<CEAA><D6A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>ʹ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD> CRC <20><><EFBFBD>鷽<EFBFBD><E9B7BD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰͬ<C7B0><CDAC><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB>Ϊ<EFBFBD>˼<EFBFBD><CBBC><EFBFBD> FCS <20><>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD>ᶪ<EFBFBD><E1B6AA><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Խ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD><EFBFBD>飬ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еij<EFBFBD>Ա<EFBFBD>Ż<EFBFBD><EFBFBD>յ<EFBFBD><EFBFBD>㲥<EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD> (A1, A2, A3, A4) <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>A1 <20><><EFBFBD>͵Ĺ㲥<C4B9>ᱻ A2<41><32>A3<41><33>A4 <20>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>վ<EFBFBD><D5BE><EFBFBD>ղ<EFBFBD><D5B2><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> IP <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㾡<EFBFBD><EFBFBD><EFBFBD>ܼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>ṩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵġ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
ʹ<EFBFBD><EFBFBD> IP Э<>飬<EFBFBD><E9A3AC><EFBFBD><EFBFBD><D4B0>칹<EFBFBD><ECB9B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㿴<EFBFBD><E3BFB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ͳһ<CDB3><D2BB><EFBFBD><EFBFBD><EFBFBD>硣
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD> IP Э<><D0AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>õĻ<C3B5><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD>飺
|
||||
|
||||
1. <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> ARP<52><50>Address Resolution Protocol<6F><6C>
|
||||
2. <20><><EFBFBD>ʿ<EFBFBD><CABF>Ʊ<EFBFBD><C6B1><EFBFBD>Э<EFBFBD><D0AD> ICMP<4D><50>Internet Control Message Protocol<6F><6C>
|
||||
3. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> IGMP<4D><50>Internet Group Management Protocol<6F><6C>
|
||||
|
||||
|
||||
|
||||
## IP <20><><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD>ʽ
|
||||
|
||||
|
||||
|
||||
**<EFBFBD>汾** : <20><> 4<><34>IPv4<76><34><EFBFBD><EFBFBD> 6<><36>IPv6<76><36><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5>
|
||||
|
||||
**<EFBFBD>ײ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>** : ռ 4 λ<><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵΪ 15<31><35>ֵΪ 1 <20><>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD> 1 <20><> 32 λ<>ֵij<D6B5><C4B3>ȣ<EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD> 4 <20>ֽڡ<D6BD><DAA1><EFBFBD>Ϊ<EFBFBD>ײ<EFBFBD><D7B2>̶<EFBFBD><CCB6><EFBFBD><EFBFBD><EFBFBD>Ϊ 20 <20>ֽڣ<D6BD><DAA3><EFBFBD><EFBFBD>˸<EFBFBD>ֵ<EFBFBD><D6B5>СΪ 5<><35><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><D1A1><EFBFBD>ֵij<D6B5><C4B3>Ȳ<EFBFBD><C8B2><EFBFBD> 4 <20>ֽڵ<D6BD><DAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>β<EFBFBD><CEB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䲿<EFBFBD><E4B2BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䡣
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD>** : <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ø<EFBFBD><C3B8>õķ<C3B5><C4B7><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>²<EFBFBD><C2B2><EFBFBD><EFBFBD>á<EFBFBD>
|
||||
|
||||
**<EFBFBD>ܳ<EFBFBD><EFBFBD><EFBFBD>** : <20><><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD>Ⱥ<EFBFBD><C8BA><EFBFBD><EFBFBD>ݲ<EFBFBD><DDB2>ֳ<EFBFBD><D6B3>ȡ<EFBFBD>
|
||||
|
||||
**<EFBFBD><EFBFBD>ʶ** : <20><><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD>ȹ<EFBFBD><C8B9><EFBFBD><EFBFBD>Ӷ<EFBFBD><D3B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD><C2A3><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD>ݱ<EFBFBD><DDB1>IJ<EFBFBD>ͬ<EFBFBD><CDAC>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD>ı<EFBFBD>ʶ<EFBFBD><CAB6><EFBFBD><EFBFBD>
|
||||
|
||||
**Ƭƫ<C6AC><C6AB>** : <20>ͱ<EFBFBD>ʶ<EFBFBD><CAB6>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڷ<EFBFBD><DAB7><EFBFBD><EFBFBD><EFBFBD>Ƭ<EFBFBD><C6AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƭƫ<C6AC>Ƶĵ<C6B5>λΪ 8 <20>ֽڡ<D6BD>
|
||||
|
||||
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>** <20><>TTL<54><4C><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD>Ϊ<EFBFBD>˷<EFBFBD>ֹ<EFBFBD><EFBFBD><DEB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD><D0B2>϶<EFBFBD>Ȧ<EFBFBD>ӡ<EFBFBD><D3A1><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA>λ<EFBFBD><CEBB><EFBFBD><EFBFBD> TTL Ϊ 0 ʱ<>Ͷ<EFBFBD><CDB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD>
|
||||
|
||||
**Э<><D0AD>**<EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD>Я<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD>Ͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ICMP<4D><50>TCP<43><50>UDP <20>ȡ<EFBFBD>
|
||||
|
||||
**<EFBFBD>ײ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**<2A><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>ݱ<EFBFBD>ÿ<EFBFBD><C3BF><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><CDA3><EFBFBD><EFBFBD>˼<EFBFBD><CBBC><EFBFBD><EFBFBD>Ͳ<EFBFBD><CDB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݲ<EFBFBD><DDB2>ֿ<EFBFBD><D6BF>Լ<EFBFBD><D4BC>ټ<EFBFBD><D9BC><EFBFBD><EFBFBD>Ĺ<EFBFBD><C4B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## IP <20><>ַ<EFBFBD><D6B7>ַ
|
||||
|
||||
IP <20><>ַ<EFBFBD>ı<EFBFBD>ַ<EFBFBD><D6B7>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʷ<EFBFBD>Σ<D7B6>
|
||||
|
||||
1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7>
|
||||
2. <20><><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><C4BB>֣<EFBFBD>
|
||||
3. <20><><EFBFBD>ɳ<EFBFBD><C9B3><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>в<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ų<EFBFBD><EFBFBD>ȣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǹ̶<EFBFBD><EFBFBD>ġ<EFBFBD>
|
||||
|
||||
IP <20><>ַ ::= {< <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> >, < <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> >}
|
||||
|
||||
|
||||
|
||||
### 2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7>ע<EFBFBD>⣬<EFBFBD>ⲿ<EFBFBD><E2B2BF><EFBFBD>翴<EFBFBD><E7BFB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4>ڡ<EFBFBD>
|
||||
|
||||
IP <20><>ַ ::= {< <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> >, < <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> >, < <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> >}
|
||||
|
||||
Ҫʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>롣һ<EFBFBD><EFBFBD> B <20><><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7>Ĭ<EFBFBD><C4AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 255.255.0.0<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> B <20><><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>أ<EFBFBD><D8A3><EFBFBD>ô<EFBFBD><C3B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 11111111 11111111 11000000 000000<30><30>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD> 255.255.192.0<EFBFBD><EFBFBD>
|
||||
|
||||
### 3. <20><EFBFBD><DEB7><EFBFBD><EFBFBD><EFBFBD>ַ CIDR<44><52><EFBFBD><EFBFBD><EFBFBD>ɳ<EFBFBD><C9B3><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
CIDR <20><><EFBFBD><EFBFBD><EFBFBD>˴<EFBFBD>ͳ A <20>ࡢB <20><><EFBFBD><EFBFBD> C <20><><EFBFBD><EFBFBD>ַ<EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8>ʹ<EEA3AC><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<C7B0><D7BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7><EFBFBD>б<EFBFBD><D0B1>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD>ǰ<C7B0>ij<EFBFBD><C4B3>ȿ<EFBFBD><C8BF>Ը<EFBFBD><D4B8><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>仯<EFBFBD><E4BBAF>
|
||||
|
||||
IP <20><>ַ ::= {< <20><><EFBFBD><EFBFBD>ǰ<C7B0><D7BA> >, < <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> >}
|
||||
|
||||
CIDR <20>ļǷ<C4BC><C7B7>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<C7B0><D7BA><EFBFBD>ȵķ<C8B5><C4B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 128.14.35.7/20 <20><>ʾǰ 20 λΪ<CEBB><CEAA><EFBFBD><EFBFBD>ǰ<C7B0><D7BA>
|
||||
|
||||
CIDR <20>ĵ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 <20><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD>ǰ<C7B0>ij<EFBFBD><C4B3>ȡ<EFBFBD>
|
||||
|
||||
һ<EFBFBD><EFBFBD> CIDR <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>кܶ<D0BA><DCB6><EFBFBD>ַ<EFBFBD><D6B7>һ<EFBFBD><D2BB> CIDR <20><>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϳ<EFBFBD><CDBF>Ա<EFBFBD>ʾԭ<CABE><D4AD><EFBFBD>ĺܶ<C4BA><DCB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>磬<EFBFBD><E7A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD>ֻ<EFBFBD><D6BB>Ҫһ<D2AA><D2BB>·<EFBFBD>ɾͿ<C9BE><CDBF>Դ<EFBFBD><D4B4><EFBFBD>ԭ<EFBFBD><D4AD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD>·<EFBFBD>ɣ<EFBFBD><C9A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<C7B0><D7BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD><EFBFBD>ķ<EFBFBD>ʽ<EFBFBD><CABD>Ϊ·<CEAA>ɾۺϣ<DBBA>Ҳ<EFBFBD><D2B2>Ϊ<EFBFBD><CEAA><EFBFBD>ɳ<EFBFBD><C9B3><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>·<EFBFBD>ɱ<EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD>ɡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ܻ<EFBFBD><EFBFBD>õ<EFBFBD><EFBFBD><EFBFBD>ֹһ<EFBFBD><EFBFBD>ƥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰƥ<EFBFBD>䡣
|
||||
|
||||
## IP <20><>ַ<EFBFBD><D6B7> MAC <20><>ַ
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>ţ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD>ʵ<EFBFBD>־<EFBFBD><EFBFBD><EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>·֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>š<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>Ź<EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD>IP <20><><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD>Դ<EFBFBD><D4B4>ַ<EFBFBD><D6B7>Ŀ<EFBFBD>ĵ<EFBFBD>ַʼ<D6B7>ղ<EFBFBD><D5B2>䣬<EFBFBD><E4A3AC> MAC <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ĸı<C4B8><C4B1><EFBFBD><EFBFBD>ı䡣
|
||||
|
||||
|
||||
|
||||
|
||||
## <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> ARP
|
||||
|
||||
ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD>õ<EFBFBD> MAC <20><>ַ<EFBFBD><D6B7>
|
||||
|
||||
ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD> ARP <20><><EFBFBD>ٻ<EFBFBD><D9BB>棬<EFBFBD><E6A3AC><EFBFBD><EFBFBD>ӳ<EFBFBD><D3B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> IP <20><>ַ <20><> MAC <20><>ַ<EFBFBD><D6B7>ӳ<EFBFBD>䲻<EFBFBD>ڸñ<DAB8><C3B1>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD>㲥<EFBFBD>ķ<EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD> ARP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>飬ƥ<E9A3AC><C6A5> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᷢ<EFBFBD><E1B7A2> ARP <20><>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֪ MAC <20><>ַ<EFBFBD><D6B7>
|
||||
|
||||
|
||||
|
||||
## ·<><C2B7><EFBFBD><EFBFBD><EFBFBD>Ľṹ
|
||||
|
||||
·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ի<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD>·<EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṹ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˿ں<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˿ڡ<EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṹ<EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ַ<EFBFBD>ʽ<EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>㣬<EFBFBD><E3A3AC>ʶ<EFBFBD><CAB6> MAC <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD> MAC <20><>ַת<D6B7><D7AA><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֡<EFBFBD><D6A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ά<EFBFBD><CEAC> IP <20><>ַ<EFBFBD><D6B7> MAC <20><>ַ<EFBFBD><D6B7>ӳ<EFBFBD>䡣
|
||||
|
||||
- ·<><C2B7><EFBFBD><EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㣬<EFBFBD><E3A3AC>ʶ<EFBFBD><CAB6> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַת<D6B7><D7AA><EFBFBD><EFBFBD><EFBFBD>顣ά<E9A1A3><CEAC><EFBFBD><EFBFBD>·<EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ɱ<EFBFBD>ѡ<EFBFBD><D1A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ߡ<EFBFBD>
|
||||
|
||||
## ·<><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
1. <20><><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2><EFBFBD>ȡĿ<C8A1><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ D<><44><EFBFBD>õ<EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ N<><4E><EFBFBD><EFBFBD>·<EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŷ<EFBFBD><C5B6><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
2. <20><> N <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><C4B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD><EFBFBD>
|
||||
3. <20><>·<EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD>ĵ<EFBFBD>ַΪ D <20><><EFBFBD>ض<EFBFBD><D8B6><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ɣ<EFBFBD><C9A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD><EFBFBD><CDB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
4. <20><>·<EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> N <20><>·<EFBFBD>ɣ<EFBFBD><C9A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
5. <20><>·<EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>Ĭ<EFBFBD><C4AC>·<EFBFBD>ɣ<EFBFBD><C9A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD>Ĭ<EFBFBD><C4AC>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
6. <20><><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
## ·<><C2B7>ѡ<EFBFBD><D1A1>Э<EFBFBD><D0AD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>õ<EFBFBD>·<EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD>Э<EFBFBD>鶼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˱仯<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ؽ<EFBFBD><EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ի<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ AS<41><53>һ<EFBFBD><D2BB> AS <20><><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9>һ<EFBFBD>ֺͱ<D6BA><CDB1><EFBFBD> AS <20><>ͬ<EFBFBD><CDAC>·<EFBFBD><C2B7>ѡ<EFBFBD><D1A1>Э<EFBFBD>顣
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD>Э<EFBFBD>黮<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ࣺ
|
||||
|
||||
1. <20>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> IGP<47><50>Interior Gateway Protocol<6F><6C> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<CFB5>ڲ<EFBFBD>ʹ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD> RIP <20><> OSPF<50><46>
|
||||
2. <20>ⲿ<EFBFBD><E2B2BF><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> EGP<47><50>External Gateway Protocol<6F><6C> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ֮<CDB3><D6AE>ʹ<EFBFBD>ã<EFBFBD><C3A3><EFBFBD> BGP<47><50>
|
||||
|
||||
|
||||
|
||||
### 1. <20>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> RIP
|
||||
|
||||
RIP <20><>һ<EFBFBD>ֲַ<D6B7>ʽ<EFBFBD>Ļ<EFBFBD><C4BB>ھ<EFBFBD><DABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7>ѡ<EFBFBD><D1A1>Э<EFBFBD>顣<EFBFBD><E9A1A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 1<><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 15<31><35><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 15 <20><>ʾ<EFBFBD><CABE><EFBFBD>ɴ
|
||||
|
||||
RIP <20><><EFBFBD>̶<EFBFBD><CCB6><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD>·<EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɴν<C9B4><CEBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD>֪<EFBFBD><D6AA><EFBFBD><EFBFBD><EFBFBD>ﱾ<EFBFBD><EFB1BE><EFBFBD><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD>κ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̾<EFBFBD><CCBE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><EFBFBD>
|
||||
|
||||
1. <20>Ե<EFBFBD>ַΪ X <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> RIP <20><><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD>ı<DEB8><C4B1><EFBFBD><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ֶ<EFBFBD><D6B6>еĵ<D0B5>ַ<EFBFBD><D6B7>Ϊ X<><58><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еľ<D0B5><C4BE><EFBFBD><EFBFBD>ֶμ<D6B6> 1<><31>
|
||||
2. <20><><EFBFBD>ĺ<DEB8><C4BA><EFBFBD> RIP <20><><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>ÿһ<C3BF><D2BB><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>²<EFBFBD><C2B2>裺
|
||||
- <20><>ԭ<EFBFBD><D4AD><EFBFBD><EFBFBD>·<EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD>û<EFBFBD><C3BB>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD> N<><4E><EFBFBD><EFBFBD><EFBFBD>Ѹ<EFBFBD><D1B8><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD>ӵ<EFBFBD>·<EFBFBD>ɱ<EFBFBD><C9B1>У<EFBFBD>
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7> X<><58><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD>滻ԭ<E6BBBB><D4AD>·<EFBFBD>ɱ<EFBFBD><C9B1>е<EFBFBD><D0B5><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD>еľ<D0B5><C4BE><EFBFBD> d С<><D0A1>·<EFBFBD>ɱ<EFBFBD><C9B1>еľ<D0B5><C4BE>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD><EFBFBD>и<EFBFBD><D0B8>£<EFBFBD><C2A3><EFBFBD><EFBFBD><EFBFBD>ԭʼ·<CABC>ɱ<EFBFBD><C9B1><EFBFBD>Ϊ Net2, 5, P<><50><EFBFBD>±<EFBFBD><C2B1><EFBFBD>Ϊ Net2, 4, X<><58><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD><C2A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʲôҲ<C3B4><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
3. <20><> 3 <20><><EFBFBD>ӻ<EFBFBD>û<EFBFBD><C3BB><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD>·<EFBFBD>ɱ<EFBFBD><C9B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѹ<EFBFBD><D1B8><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>ɴ<C9B4><EFA3AC><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD>Ϊ 16<31><36>
|
||||
|
||||
RIP Э<><D0AD>ʵ<EFBFBD>ּ<D6BC><F2B5A5A3><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD> RIP <20><>ʹ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 15<31><35><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֹ<EFBFBD><D6B9><EFBFBD>ʱ<EFBFBD><CAB1>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD>Ƚϳ<C8BD><CFB3><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD>͵<EFBFBD><CDB5><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
### 2. <20>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> OSPF
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> OSPF<50><46><EFBFBD><EFBFBD>Ϊ<EFBFBD>˿˷<CBBF> RIP <20><>ȱ<EFBFBD><C8B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ű<EFBFBD>ʾ OSPF <20><><EFBFBD><EFBFBD>ijһ<C4B3>ҳ<EFBFBD><D2B3>̿<EFBFBD><CCBF>ƣ<EFBFBD><C6A3><EFBFBD><EFBFBD>ǹ<EFBFBD><C7B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊʹ<CEAA><CAB9><EFBFBD><EFBFBD> Dijkstra <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD>㷨 SPF<50><46>
|
||||
|
||||
OSPF <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص㣺
|
||||
|
||||
1. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<CFB5>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ǻ鷺<C7BA><E9B7BA><EFBFBD><EFBFBD>
|
||||
2. <20><><EFBFBD>͵<EFBFBD><CDB5><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·״̬<D7B4><CCAC><EFBFBD><EFBFBD>·״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ·<D0A9><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC><EFBFBD>·<EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><C3B7>á<EFBFBD><C3A1><EFBFBD><EFBFBD>롢ʱ<EBA1A2>ӡ<EFBFBD><D3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE>
|
||||
3. ֻ<>е<EFBFBD><D0B5><EFBFBD>·״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD>仯ʱ<E4BBAF><CAB1>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD>Żᷢ<C5BB><E1B7A2><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˽ṹͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>µġ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> RIP<49><50>OSPF <20>ĸ<EFBFBD><C4B8>¹<EFBFBD><C2B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĺܿ졣
|
||||
|
||||
### 3. <20>ⲿ<EFBFBD><E2B2BF><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> BGP
|
||||
|
||||
AS ֮<><D6AE><EFBFBD><EFBFBD>·<EFBFBD><C2B7>ѡ<EFBFBD><D1A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѣ<EFBFBD><D1A3><EFBFBD>Ҫ<EFBFBD>ǻ<EFBFBD><C7BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>ܴ<DCB4><F3A1A3B2>Ҹ<EFBFBD><D2B8><EFBFBD> AS <20>ڲ<EFBFBD>ʹ<EFBFBD>ò<EFBFBD>ͬ<EFBFBD><CDAC>·<EFBFBD><C2B7>ѡ<EFBFBD><D1A1>Э<EFBFBD>飬<EFBFBD><E9A3AC><EFBFBD><EFBFBD>ȷ<D7BC><C8B7><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> AS ֮<><D6AE><EFBFBD><EFBFBD>·<EFBFBD><C2B7>ѡ<EFBFBD><D1A1><EFBFBD><EFBFBD><EFBFBD>뿼<EFBFBD><EBBFBC><EFBFBD>йصIJ<D8B5><C4B2>ԣ<EFBFBD><D4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ AS <20><>Ը<EFBFBD><D4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> AS <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
BGP ֻ<><D6BB>Ѱ<EFBFBD><D1B0>һ<EFBFBD><D2BB><EFBFBD>ȽϺõ<CFBA>·<EFBFBD>ɣ<EFBFBD><C9A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ɡ<EFBFBD><C9A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7>ѡ<EFBFBD><D1A1>Э<EFBFBD>顣
|
||||
|
||||
ÿ<EFBFBD><EFBFBD> AS <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> BGP <20><><EFBFBD><EFBFBD><EFBFBD>ˣ<EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> BGP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD>佨<EFBFBD><E4BDA8> TCP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>
|
||||
|
||||
|
||||
|
||||
## <20><><EFBFBD>ʿ<EFBFBD><CABF>Ʊ<EFBFBD><C6B1><EFBFBD>Э<EFBFBD><D0AD> ICMP
|
||||
|
||||
ICMP <20><>Ϊ<EFBFBD>˸<EFBFBD><CBB8><EFBFBD>Ч<EFBFBD><D0A7>ת<EFBFBD><D7AA> IP <20><><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߽<EFBFBD><DFBD><EFBFBD><EFBFBD>ɹ<EFBFBD><C9B9>Ļ<EFBFBD><C4BB>ᡣ<EFBFBD><E1A1A3><EFBFBD><EFBFBD>װ<EFBFBD><D7B0> IP <20><><EFBFBD>ݱ<EFBFBD><DDB1>У<EFBFBD><D0A3><EFBFBD><EFBFBD>Dz<EFBFBD><C7B2><EFBFBD><EFBFBD>ڸ߲<DAB8>Э<EFBFBD>顣
|
||||
|
||||
|
||||
|
||||
ICMP <20><><EFBFBD>ķ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>汨<EFBFBD>ĺ<EFBFBD>ѯ<EFBFBD>ʱ<EFBFBD><CAB1>ġ<EFBFBD>
|
||||
|
||||
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̽<EFBFBD><CCBD> PING
|
||||
|
||||
PING <20><> ICMP <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ҪӦ<D2AA>ã<EFBFBD><C3A3><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>̨<EFBFBD><CCA8><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>ԡ<EFBFBD>
|
||||
|
||||
PING <20>Ĺ<EFBFBD><C4B9>̣<EFBFBD>
|
||||
|
||||
1. PING ͬһ<CDAC><D2BB><EFBFBD><EFBFBD><EFBFBD>ε<EFBFBD><CEB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> MAC <20><>ַ<EFBFBD><D6B7>Ȼ<EFBFBD><C8BB>ֱ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><DEB7><EFBFBD><EFBFBD>ҵ<EFBFBD> MAC <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> ARP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
2. PING <20><>ͬ<EFBFBD><CDAC><EFBFBD>ε<EFBFBD><CEB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><CDB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><CDB8><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2>Ҫͨ<D2AA><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD> MAC <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD> MAC <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>ת<EFBFBD><D7AA><EFBFBD><EFBFBD>
|
||||
|
||||
## IP <20>ಥ
|
||||
|
||||
<EFBFBD><EFBFBD>һ<EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD>ಥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>鸴<EFBFBD>ƶ<EFBFBD><EFBFBD>ݣ<EFBFBD><EFBFBD>Ӷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
## <20><><EFBFBD><EFBFBD>ר<EFBFBD><D7A8><EFBFBD><EFBFBD> VPN
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD>Ľ<EFBFBD>ȱ<EFBFBD><C8B1>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뵽<EFBFBD><EBB5BD> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԶС<D4B6>ڱ<EFBFBD><DAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뵽<EFBFBD>ⲿ<EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵļ<DAB5><C4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ý<EFBFBD><C3BD>ڱ<EFBFBD><DAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7> IP <20><>ַ<EFBFBD><D6B7>ר<EFBFBD>õ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ר<EFBFBD>õ<EFBFBD>ַ<EFBFBD>飺
|
||||
|
||||
1. 10.0.0.0 \~ 10.255.255.255
|
||||
2. 172.16.0.0 \~ 172.31.255.255
|
||||
3. 192.168.0.0 \~ 192.168.255.255
|
||||
|
||||
VPN ʹ<>ù<EFBFBD><C3B9>õĻ<C3B5><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ר<EFBFBD><D7A8><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD>塣ר<E5A1A3><D7A8>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>뱾<EFBFBD><EBB1BE><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>ţ<EFBFBD><C5A3><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǡ<EFBFBD><C7A1><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD>ϲ<EFBFBD><CFB2><EFBFBD><EFBFBD>ǣ<EFBFBD><C7A3><EFBFBD><EFBFBD>о<EFBFBD><D0BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õĻ<C3B5><C4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>ͼ<EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> A <20><> B <20><>ͨ<EFBFBD>Ų<EFBFBD><C5B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> A <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> X Ҫ<><D2AA><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD> B <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Y ͨ<>ţ<EFBFBD>IP <20><><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD>Դ<EFBFBD><D4B4>ַ<EFBFBD><D6B7> 10.1.0.1<EFBFBD><EFBFBD>Ŀ<EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><EFBFBD> 10.2.0.3<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD>뻥<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD> R1<52><31>R1 <20><><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD>ݽ<EFBFBD><DDBD>м<EFBFBD><D0BC>ܣ<EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2><EFBFBD>Դ<EFBFBD><D4B4>ַ<EFBFBD><D6B7>·<EFBFBD><C2B7><EFBFBD><EFBFBD> R1 <20><>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD>ַ 125.1.2.3<EFBFBD><EFBFBD>Ŀ<EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD> R2 <20><>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD>ַ 194.4.5.6<EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD> R2 <20>յ<EFBFBD><D5B5><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݲ<EFBFBD><DDB2>ֽ<EFBFBD><D6BD>н<EFBFBD><D0BD>ܣ<EFBFBD><DCA3>ָ<EFBFBD>ԭ<EFBFBD><D4AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD><EFBFBD>ʱĿ<CAB1>ĵ<EFBFBD>ַΪ 10.2.0.3<EFBFBD><EFBFBD><EFBFBD>ͽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Y<><59>
|
||||
|
||||
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַת<D6B7><D7AA> NAT
|
||||
|
||||
ר<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ñ<EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> NAT <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP ת<><D7AA>Ϊȫ<CEAA><C8AB> IP<49><50>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD>NAT <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ȫ<EFBFBD><C8AB> IP һһ<D2BB><D2BB>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ʽ<EFBFBD><CABD>ӵ<EFBFBD><D3B5> n <20><>ȫ<EFBFBD><C8AB> IP <20><>ַ<EFBFBD><D6B7>ר<EFBFBD><D7A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD>ͬʱ<CDAC><CAB1> n ̨<><CCA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뻥<EFBFBD><EBBBA5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>˸<EFBFBD><CBB8><EFBFBD>Ч<EFBFBD><D0A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD><DAB3>õ<EFBFBD> NAT ת<><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ˿ں<CBBF>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD>ˣ<EFBFBD><CBA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ö<EFBFBD><C3B6><EFBFBD>ר<EFBFBD><D7A8><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><DAB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ȫ<EFBFBD><C8AB> IP <20><>ַ<EFBFBD><D6B7>ʹ<EFBFBD>ö˿ںŵ<DABA> NAT Ҳ<><D2B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>˿<EFBFBD>ת<EFBFBD><D7AA> NAPT<50><54>
|
||||
|
||||
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>ѷ<EFBFBD><EFBFBD>鷢<EFBFBD>͵<EFBFBD>Ŀ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>ŵIJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĽ<EFBFBD><EFBFBD>̡<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD><EFBFBD>Ӧ<EFBFBD>ý<EFBFBD><EFBFBD>̼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>š<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߲<EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD><EFBFBD><EFBFBD>ϸ<EFBFBD>ڣ<EFBFBD>ʹӦ<EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD>ŵ<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## UDP <20><> TCP <20><><EFBFBD>ص<EFBFBD>
|
||||
|
||||
<EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݰ<EFBFBD>Э<EFBFBD><EFBFBD> UDP<44><50>User Datagram Protocol<6F><6C>
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD> TCP<43><50>Transmission Control Protocol<6F><6C>
|
||||
|
||||
UDP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵģ<D3B5><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܽ<EFBFBD><DCBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><C6A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ó<EFBFBD><C3B3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><C4B1>IJ<EFBFBD><C4B2>ϲ<EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD> UDP <20>ײ<EFBFBD><D7B2><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
TCP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵģ<D3B5><C4A3>ṩ<EFBFBD>ɿ<EFBFBD><C9BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><C6A3>ṩȫ˫<C8AB><CBAB>ͨ<EFBFBD>ţ<EFBFBD><C5A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD>ò㴫<C3B2><E3B4AB><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><C4B1>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD>֯<EFBFBD>ɴ<EFBFBD>С<EFBFBD><D0A1><EFBFBD>ȵ<EFBFBD><C8B5><EFBFBD><EFBFBD>ݿ飩
|
||||
|
||||
## UDP <20>ײ<EFBFBD><D7B2><EFBFBD>ʽ
|
||||
|
||||
|
||||
|
||||
<EFBFBD>ײ<EFBFBD><EFBFBD>ֶ<EFBFBD>ֻ<EFBFBD><EFBFBD> 8 <20><><EFBFBD>ֽڣ<D6BD><DAA3><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD>˿ڡ<CBBF>Ŀ<EFBFBD>Ķ˿ڡ<CBBF><DAA1><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͡<EFBFBD>12 <20>ֽڵ<D6BD>α<EFBFBD>ײ<EFBFBD><D7B2><EFBFBD>Ϊ<EFBFBD>˼<EFBFBD><CBBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͷ<EFBFBD><CDB6><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD>ӵġ<D3B5>
|
||||
|
||||
## TCP <20>ײ<EFBFBD><D7B2><EFBFBD>ʽ
|
||||
|
||||
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>** <20><><EFBFBD><EFBFBD><EFBFBD>ڶ<EFBFBD><DAB6>ֽ<EFBFBD><D6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD><D0B1>ţ<EFBFBD><C5A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 301<30><31><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE>һ<EFBFBD><D2BB><EFBFBD>ֽڵı<DAB5><C4B1><EFBFBD>Ϊ 301<30><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Я<EFBFBD><D0AF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><DDB3><EFBFBD>Ϊ 100 <20>ֽڣ<D6BD><DAA3><EFBFBD>ô<EFBFBD><C3B4>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>Ķε<C4B6><CEB5><EFBFBD><EFBFBD><EFBFBD>ӦΪ 401<30><31>
|
||||
|
||||
**ȷ<>Ϻ<EFBFBD>** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>Ķε<C4B6><CEB5><EFBFBD><EFBFBD>š<EFBFBD><C5A1><EFBFBD><EFBFBD><EFBFBD> B <20><>ȷ<EFBFBD>յ<EFBFBD> A <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ĶΣ<C4B6><CEA3><EFBFBD><EFBFBD><EFBFBD>Ϊ 501<30><31>Я<EFBFBD><D0AF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><DDB3><EFBFBD>Ϊ 200 <20>ֽڣ<D6BD><DAA3><EFBFBD><EFBFBD><EFBFBD> B <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>Ķε<C4B6><CEB5><EFBFBD><EFBFBD><EFBFBD>Ϊ 701<30><31>B <20><><EFBFBD><EFBFBD> A <20><>ȷ<EFBFBD>ϱ<EFBFBD><CFB1>Ķ<EFBFBD><C4B6><EFBFBD>ȷ<EFBFBD>Ϻž<CFBA>Ϊ 701<30><31>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƫ<EFBFBD><EFBFBD>** <20><>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݲ<EFBFBD><DDB2>־<EFBFBD><D6BE>뱨<EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>ƫ<EFBFBD><C6AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD>ײ<EFBFBD><D7B2>ij<EFBFBD><C4B3>ȡ<EFBFBD>
|
||||
|
||||
**ȷ<><C8B7> ACK** <20><><EFBFBD><EFBFBD> ACK=1 ʱȷ<CAB1>Ϻ<EFBFBD><CFBA>ֶ<EFBFBD><D6B6><EFBFBD>Ч<EFBFBD><D0A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ч<EFBFBD><D0A7>TCP <20>涨<EFBFBD><E6B6A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4>͵ı<CDB5><C4B1>Ķζ<C4B6><CEB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ACK <20><> 1<><31>
|
||||
|
||||
**ͬ<><CDAC> SYN** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD>š<EFBFBD><C5A1><EFBFBD> SYN=1<><31>ACK=0 ʱ<><CAB1>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĶΡ<C4B6><CEA1><EFBFBD><EFBFBD>Է<EFBFBD>ͬ<EFBFBD>⽨<EFBFBD><E2BDA8><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD> SYN=1<><31>ACK=1<><31>
|
||||
|
||||
**<EFBFBD><EFBFBD>ֹ FIN** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD> FIN=1 ʱ<><CAB1><EFBFBD><EFBFBD>ʾ<EFBFBD>˱<EFBFBD><CBB1>Ķεķ<CEB5><C4B7>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѷ<EFBFBD><D1B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӡ<EFBFBD>
|
||||
|
||||
**<EFBFBD><EFBFBD><EFBFBD><EFBFBD>** <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5>Ϊ<EFBFBD><CEAA><EFBFBD>շ<EFBFBD><D5B7>÷<EFBFBD><C3B7>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䷢<EFBFBD>ʹ<EFBFBD><CDB4>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD>ݡ<EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><C6A3><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>շ<EFBFBD><D5B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݻ<EFBFBD><DDBB><EFBFBD><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<DEB5>
|
||||
|
||||
## TCP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> A Ϊ<>ͻ<EFBFBD><CDBB>ˣ<EFBFBD>B Ϊ<><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˡ<EFBFBD>
|
||||
|
||||
1. <20><><EFBFBD><EFBFBD> B <20><><EFBFBD><EFBFBD> LISTEN<45><4E><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD>ȴ<EFBFBD><C8B4>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
2. A <20><> B <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĶΣ<C4B6>SYN=1<><31>ACK=0<><30>ѡ<EFBFBD><D1A1>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD> x<><78>
|
||||
3. B <20>յ<EFBFBD><D5B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĶΣ<C4B6><CEA3><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD>⽨<EFBFBD><E2BDA8><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD><EFBFBD><EFBFBD> A <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD>ϱ<EFBFBD><CFB1>ĶΣ<C4B6>SYN=1<><31>ACK=1<><31>ȷ<EFBFBD>Ϻ<EFBFBD>Ϊ x+1<><31>ͬʱҲѡ<D2B2><D1A1>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD> y<><79>
|
||||
4. A <20>յ<EFBFBD> B <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD>ϱ<EFBFBD><CFB1>Ķκ<CEBA>Ҫ<EFBFBD><D2AA> B <20><><EFBFBD><EFBFBD>ȷ<EFBFBD>ϣ<EFBFBD>ȷ<EFBFBD>Ϻ<EFBFBD>Ϊ y+1<><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ x+1<><31>
|
||||
5. B <20>յ<EFBFBD> A <20><>ȷ<EFBFBD>Ϻ<EFBFBD><CFBA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
## TCP <20><><EFBFBD>Ĵλ<C4B4><CEBB><EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD>ȷ<EFBFBD>Ϻţ<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD>ȷ<EFBFBD>ϺŵĹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƚϼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ACK<43><4B><EFBFBD><EFBFBD>Ϊ ACK <20><><EFBFBD><EFBFBD><EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD>Ϊ 1<><31>
|
||||
|
||||
1. A <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷű<CDB7><C5B1>ĶΣ<C4B6>FIN=1<><31>
|
||||
2. B <20>յ<EFBFBD>֮<EFBFBD><EFBFBD>ȷ<EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD>ʱ TCP <20><><EFBFBD>ڰ<EFBFBD><DAB0>ر<EFBFBD>״̬<D7B4><CCAC>B <20><><EFBFBD><EFBFBD> A <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><DDB5><EFBFBD> A <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> B <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݣ<EFBFBD>
|
||||
3. <20><> B Ҫ<><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĶΣ<C4B6>FIN=1<><31>
|
||||
4. A <20>յ<EFBFBD><D5B5><EFBFBD>ȷ<EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>ͷš<CDB7>
|
||||
|
||||
**TIME_WAIT**
|
||||
|
||||
<EFBFBD>ͻ<EFBFBD><EFBFBD>˽<EFBFBD><EFBFBD>յ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD> FIN <20><><EFBFBD>ĺ<EFBFBD><C4BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӽ<EFBFBD><D3BD><EFBFBD> CLOSED ״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ȴ<EFBFBD>һ<EFBFBD><D2BB>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD>ʱ<EFBFBD>䡣<EFBFBD><E4A1A3>ô<EFBFBD><C3B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD>
|
||||
|
||||
1. ȷ<><C8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ȷ<EFBFBD>ϱ<EFBFBD><CFB1>Ķ<EFBFBD><C4B6>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD><EFBFBD><EFA1A3><EFBFBD><EFBFBD> B û<>յ<EFBFBD> A <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD>ϱ<EFBFBD><CFB1>ĶΣ<C4B6><CEA3><EFBFBD>ô<EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĶΣ<C4B6>A <20>ȴ<EFBFBD>һ<EFBFBD><D2BB>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>˴<EFBFBD><CBB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD>
|
||||
2. <20><><EFBFBD>ӹ<EFBFBD><D3B9>̿<EFBFBD><CCBF>ܡ<EFBFBD><DCA1><EFBFBD>ʧЧ<CAA7><D0A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĶΡ<C4B6><CEA1><EFBFBD>Ϊ<EFBFBD>˷<EFBFBD>ֹ<EFBFBD><D6B9><EFBFBD>ֱ<EFBFBD><D6B1>Ķγ<C4B6><CEB3><EFBFBD><EFBFBD>ڱ<EFBFBD><DAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD>⣬<EFBFBD><E2A3AC>Ҫ<EFBFBD>ȴ<EFBFBD>һ<EFBFBD><D2BB>ʱ<EFBFBD>䡣
|
||||
|
||||
## TCP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD>ͽ<EFBFBD><EFBFBD>շ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>շ<EFBFBD>ͨ<EFBFBD><EFBFBD> TCP <20><><EFBFBD>Ķ<EFBFBD><C4B6>еĴ<D0B5><C4B4><EFBFBD><EFBFBD>ֶθ<D6B6><CEB8>߷<EFBFBD><DFB7>ͷ<EFBFBD><CDB7>Լ<EFBFBD><D4BC>Ĵ<EFBFBD><C4B4>ڴ<EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><D4BC>Ĵ<EFBFBD><C4B4>ڴ<EFBFBD>С<EFBFBD><D0A1>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD>ֽڶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>մ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><EFBFBD>ֽڶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD>ϣ<EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD>ͽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룬ֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ֽڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѷ<EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD>ϵ<EFBFBD>״̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>մ<EFBFBD><EFBFBD>ڵĻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>մ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD>ϲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>մ<EFBFBD><EFBFBD>ڡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>մ<EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽڽ<EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD>ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>մ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD>յ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD>Ϊ {31, 32, 34, 35}<7D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> {31, 32} <20><><EFBFBD><F2B5BDB4><EFA3AC> {34, 35} <20>Ͳ<EFBFBD><CDB2>ǣ<EFBFBD><C7A3><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD>ֽ<EFBFBD> 32 <20><><EFBFBD><EFBFBD>ȷ<EFBFBD>ϡ<EFBFBD><CFA1><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>õ<EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ֽڵ<D6BD>ȷ<EFBFBD><C8B7>֮<EFBFBD><EFBFBD>֪<EFBFBD><D6AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽ<EFBFBD>֮ǰ<D6AE><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֽڶ<D6BD><DAB6>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ա<EFBFBD>
|
||||
|
||||
## TCP <20>ɿ<EFBFBD><C9BF><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
TCP ʹ<>ó<EFBFBD>ʱ<EFBFBD>ش<EFBFBD><D8B4><EFBFBD>ʵ<EFBFBD>ֿɿ<D6BF><C9BF><EFBFBD><EFBFBD>䣺<EFBFBD><E4A3BA><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD><EFBFBD>͵ı<CDB5><C4B1>Ķ<EFBFBD><C4B6>ڳ<EFBFBD>ʱʱ<CAB1><CAB1><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD>յ<EFBFBD>ȷ<EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD>ô<EFBFBD><C3B4><EFBFBD>ش<EFBFBD><D8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĶΡ<C4B6>
|
||||
|
||||
һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķδӷ<EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD>ȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD> RTT<54><54><EFBFBD><EFBFBD>Ȩƽ<C8A8><C6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1> RTTs <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>
|
||||
|
||||
*(RTTs)+a*RTT)
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֪<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱʱ<EFBFBD><EFBFBD> RTO Ӧ<><D3A6><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD> RRTs<54><73>TCP ʹ<>õij<C3B5>ʱʱ<CAB1><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> RTT<sub>d</sub> Ϊƫ<CEAA><EFBFBD><EEA3AC><EFBFBD><EFBFBD><EFBFBD>µ<EFBFBD> RRT <20><> RRTs <20>йء<D0B9>
|
||||
|
||||
## TCP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>˿<EFBFBD><EFBFBD>Ʒ<EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʣ<EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><EFBFBD><EFBFBD>շ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ա<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>շ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD>ȷ<EFBFBD>ϱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>еĴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶο<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ʒ<EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>С<EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD>Ӱ<EFBFBD>췢<EFBFBD>ͷ<EFBFBD><EFBFBD>ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>罫<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ 0<><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>ܷ<EFBFBD><DCB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݡ<EFBFBD>
|
||||
|
||||
## TCP ӵ<><D3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>齫<EFBFBD>ᶪʧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ش<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD><EFBFBD>̶ȸ<EFBFBD><EFBFBD>ߡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ʒ<EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʡ<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>dz<EFBFBD><EFBFBD><EFBFBD><EFBFBD>㲻ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD>ý<EFBFBD><EFBFBD>շ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ü<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܣ<EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD>˽<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD><EFBFBD>̶ȡ<EFBFBD>
|
||||
|
||||
|
||||
|
||||
TCP <20><>Ҫͨ<D2AA><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD><E3B7A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD><C6A3><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD>⡢<EFBFBD><E2A1A2><EFBFBD>ش<EFBFBD><D8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD>Ҫά<D2AA><CEAC><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD>ڣ<EFBFBD>cwnd<6E><64><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ע<EFBFBD><D7A2>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뷢<EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB>һ<EFBFBD><D2BB>״̬<D7B4><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>ܷ<EFBFBD><DCB7>Ͷ<EFBFBD><CDB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><DDB5>Ƿ<EFBFBD><C7B7>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>ڡ<EFBFBD>
|
||||
|
||||
Ϊ<EFBFBD>˱<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ۣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¼<EFBFBD><EFBFBD>裺
|
||||
|
||||
1. <20><><EFBFBD>շ<EFBFBD><D5B7><EFBFBD><EFBFBD>㹻<EFBFBD><E3B9BB><EFBFBD>Ľ<EFBFBD><C4BD>ջ<EFBFBD><D5BB>棬<EFBFBD><E6A3AC><EFBFBD>˲<EFBFBD><CBB2>ᷢ<EFBFBD><E1B7A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƣ<EFBFBD>
|
||||
2. <20><>Ȼ TCP <20>Ĵ<EFBFBD><C4B4>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD>ֽڣ<D6BD><DAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>贰<EFBFBD>ڵĴ<DAB5>С<EFBFBD><D0A1>λΪ<CEBB><CEAA><EFBFBD>ĶΡ<C4B6>
|
||||
|
||||
|
||||
|
||||
### <20><><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> cwnd=1<><31><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD>ֻ<EFBFBD>ܷ<EFBFBD><DCB7><EFBFBD> 1 <20><><EFBFBD><EFBFBD><EFBFBD>ĶΣ<C4B6><CEA3><EFBFBD><EFBFBD>յ<EFBFBD>ȷ<EFBFBD>Ϻ<CFBA> cwnd <20>ӱ<EFBFBD><D3B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD><EFBFBD>ͷ<EFBFBD><CDB7>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD>͵ı<CDB5><C4B1>Ķ<EFBFBD>Ϊ<EFBFBD><CEAA>2<EFBFBD><32>4<EFBFBD><34>8 ...
|
||||
|
||||
ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼÿ<EFBFBD><EFBFBD><EFBFBD>ִζ<EFBFBD><EFBFBD><EFBFBD> cwnd <20>ӱ<EFBFBD><D3B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> cwnd <20><><EFBFBD><EFBFBD><EFBFBD>ٶȷdz<C8B7><C7B3>죬<EFBFBD>Ӷ<EFBFBD>ʹ<EFBFBD>÷<EFBFBD><C3B7>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>͵<EFBFBD><CDB5>ٶ<EFBFBD><D9B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٶȹ<D9B6><C8B9>죬<EFBFBD><ECA3AC><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD>Ҳ<EFBFBD><EFBFBD><CDB8>ߡ<EFBFBD><DFA1><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD> ssthresh<73><68><EFBFBD><EFBFBD> cwnd >= ssthresh ʱ<><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD>⣬ÿ<E2A3AC><C3BF><EFBFBD>ִ<EFBFBD>ֻ<EFBFBD><D6BB> cwnd <20><> 1<><31>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ssthresh = cwnd / 2<><32>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>
|
||||
|
||||
### <20><><EFBFBD>ش<EFBFBD><D8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>
|
||||
|
||||
<EFBFBD>ڽ<EFBFBD><EFBFBD>շ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>ÿ<EFBFBD>ν<EFBFBD><EFBFBD>յ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķζ<EFBFBD>Ӧ<EFBFBD>÷<EFBFBD><EFBFBD>Ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķε<EFBFBD>ȷ<EFBFBD>ϣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD> M<sub>1</sub> <20><> M<sub>2</sub><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>յ<EFBFBD> M<sub>4</sub><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͷ<EFBFBD> M<sub>2</sub> <20><>ȷ<EFBFBD>ϡ<EFBFBD>
|
||||
|
||||
<EFBFBD>ڷ<EFBFBD><EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD>ȷ<EFBFBD>ϣ<EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķζ<EFBFBD>ʧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> M<sub>2</sub> <20><><EFBFBD><EFBFBD> M<sub>3</sub> <20><>ʧ<EFBFBD><CAA7><EFBFBD><EFBFBD>ʱִ<CAB1>п<EFBFBD><D0BF>ش<EFBFBD><D8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ش<EFBFBD><D8B4><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ĶΡ<C4B6>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>£<EFBFBD>ֻ<EFBFBD>Ƕ<EFBFBD>ʧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĶΣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>п<EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ssthresh = cwnd / 2 <20><>cwnd = ssthresh<73><68>ע<EFBFBD><EFBFBD><E2B5BD>ʱֱ<CAB1>ӽ<EFBFBD><D3BD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD>⡣
|
||||
|
||||
|
||||
|
||||
# <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Ӧ<>ò<EFBFBD>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD>ϵͳ DNS
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ IP <20><>ַ<EFBFBD><D6B7>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƴɷֲ<EFBFBD>ʽϵͳ<EFBFBD><EFBFBD>
|
||||
|
||||
### 1. <20><><EFBFBD>νṹ
|
||||
|
||||
һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ι<EFBFBD><EFBFBD>ɣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϲ㵽<EFBFBD>²<EFBFBD><EFBFBD>ֱ<EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ի<EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Է<EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ࣺ
|
||||
|
||||
**(1) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**(2) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**(3) Ȩ<><C8A8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵ<EFBFBD><DAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>л<EFBFBD><EFBFBD>ֶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ b <20><><EFBFBD><EFBFBD> abc.com <20>л<EFBFBD><D0BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>abc.com <20><> y.abc.com
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>˾<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
**(4) <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**<2A><>Ҳ<EFBFBD><D2B2>ΪĬ<CEAA><C4AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ø<EFBFBD><C3B8>ٻ<EFBFBD><D9BB>档
|
||||
|
||||
### 2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĺ<EFBFBD><EFBFBD>̲<EFBFBD><EFBFBD>õݹ飬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>õݹ<EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>ʽ<EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ķ<EFBFBD>ʽ<EFBFBD>£<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݹ<EFBFBD><EFBFBD>ط<EFBFBD>ʽ<EFBFBD>£<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӷ<EFBFBD><EFBFBD>صģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ż᷵<EFBFBD>ء<EFBFBD>
|
||||
|
||||
|
||||
|
||||
## <20>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> FTP
|
||||
|
||||
FTP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> TCP<43><50><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD> TCP <20><><EFBFBD>ӣ<EFBFBD><D3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӻ<EFBFBD><D3BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӡ<EFBFBD><D3A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ự<EFBFBD>ڼ<EFBFBD>һֱ<D2BB><D6B1><EFBFBD>ִ<D6B4><F2BFAAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݴ<EFBFBD><DDB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD>رա<D8B1><D5A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ö˿ں<CBBF> 21<32><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ö˿ں<CBBF> 20<32><30>
|
||||
|
||||
|
||||
|
||||
## Զ<><D4B6><EFBFBD>ն<EFBFBD>Э<EFBFBD><D0AD> TELNET
|
||||
|
||||
TELNET <20><><EFBFBD>ڵ<EFBFBD>¼<EFBFBD><C2BC>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϣ<EFBFBD><CFA3><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD>᷵<EFBFBD>ء<EFBFBD>
|
||||
|
||||
TELNET <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><CDB2><EFBFBD>ϵͳ<CFB5>IJ<EFBFBD><C4B2>죬<EFBFBD><ECA3AC><EFBFBD>粻ͬ<E7B2BB><CDAC><EFBFBD><EFBFBD>ϵͳϵͳ<CFB5>Ļ<EFBFBD><C4BB>з<EFBFBD><D0B7><EFBFBD><EFBFBD>塣
|
||||
|
||||
## <20><>ά<EFBFBD><CEAC> WWW
|
||||
|
||||
<EFBFBD><EFBFBD> HTTP <20>ʼǡ<CABC>
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD>Э<EFBFBD><D0AD>
|
||||
|
||||
һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD>ϵͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD>Ͷ<EFBFBD>ȡЭ<EFBFBD>顣<EFBFBD><EFBFBD><EFBFBD>з<EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD>鳣<EFBFBD><EFBFBD> SMTP<54><50><EFBFBD><EFBFBD>ȡЭ<C8A1>鳣<EFBFBD><E9B3A3> POP3 <20><> IMAP<41><50>
|
||||
|
||||
|
||||
|
||||
### POP3
|
||||
|
||||
POP3 <20><><EFBFBD>ص<EFBFBD><D8B5><EFBFBD>ֻҪ<D6BB>û<EFBFBD><C3BB>ӷ<EFBFBD><D3B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>϶<EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>ͰѸ<CDB0><D1B8>ʼ<EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD><EFBFBD>
|
||||
|
||||
### IMAP
|
||||
|
||||
IMAP Э<><D0AD><EFBFBD>пͻ<D0BF><CDBB>˺ͷ<CBBA><CDB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȥ<EFBFBD>ֶ<EFBFBD>ɾ<EFBFBD><C9BE><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><C3B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5>ʼ<EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>ᱻɾ<E1B1BB><C9BE><EFBFBD><EFBFBD>IMAP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>ȥ<EFBFBD><C8A5><EFBFBD>ʷ<EFBFBD><CAB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5>ʼ<EFBFBD><CABC><EFBFBD>IMAP Э<><D0AD>Ҳ֧<D2B2>ִ<EFBFBD><D6B4><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC>С<EFBFBD>
|
||||
|
||||
### SMTP
|
||||
|
||||
SMTP ֻ<>ܷ<EFBFBD><DCB7><EFBFBD> ASCII <20>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD> MIME <20><><EFBFBD>Է<EFBFBD><D4B7>Ͷ<EFBFBD><CDB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD>MIME <20><>û<EFBFBD>иĶ<D0B8><C4B6><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1> SMTP<54><50><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľṹ<C4BD><E1B9B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˷<EFBFBD> ASCII <20><><EFBFBD>ı<EFBFBD><C4B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
## <20><>̬<EFBFBD><CCAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> DHCP
|
||||
|
||||
DHCP <20>ṩ<EFBFBD>˼<EFBFBD><CBBC>弴<EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫȥ<D2AA>ֶ<EFBFBD><D6B6><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>
|
||||
|
||||
DHCP <20><><EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD>ݲ<EFBFBD><DDB2><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>롢Ĭ<EBA1A2><C4AC>·<EFBFBD><C2B7><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD>£<EFBFBD><EFBFBD><EFBFBD>Ҫ IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㲥<EFBFBD><E3B2A5><EFBFBD><EFBFBD> DHCP <20><><EFBFBD>ֱ<EFBFBD><D6B1>ģ<EFBFBD><C4A3><EFBFBD>Ŀ<EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><D6B7>Ϊȫ 1<><31><EFBFBD><EFBFBD> 255.255.255.255:67<36><37>Դ<EFBFBD><D4B4>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ϊȫ 0<><30><EFBFBD><EFBFBD> 0.0.0.0:68<36><38><EFBFBD><EFBFBD>DHCP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>յ<EFBFBD><D5B5><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD>֮<EFBFBD><D6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>ȡһ<C8A1><D2BB><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD> DHCP <20>ṩ<EFBFBD><E1B9A9><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
## <20><><EFBFBD>Ե㴫<D4B5><E3B4AB> P2P
|
||||
|
||||
<EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>жԵȼ<EFBFBD><EFBFBD>ϳ<EFBFBD>Ϊһ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD>Ԫ<EFBFBD><EFBFBD>Ϊ<EFBFBD>ļ<EFBFBD><EFBFBD>飬<EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD>С<EFBFBD>ǹ̶<EFBFBD><EFBFBD>ġ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>µĶԵȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD>飬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Եȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD>һЩ<EFBFBD>ļ<EFBFBD><EFBFBD>飬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҲΪ<EFBFBD><EFBFBD><EFBFBD>ĶԵȷ<EFBFBD><EFBFBD>ϴ<EFBFBD>һЩ<EFBFBD>ļ<EFBFBD><EFBFBD>顣
|
||||
|
||||
ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>Եȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǽǣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ե<EFBFBD>֪ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ں<EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
һ<EFBFBD><EFBFBD><EFBFBD>µĶԵȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɸ<EFBFBD><EFBFBD>Եȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¶Եȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD>Եȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD>Եȷ<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD>ڶԵȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>պͷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD>鶼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڶԵȷ<EFBFBD><EFBFBD>н<EFBFBD><EFBFBD>С<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>Եȷ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ܶ<EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȵIJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD>飬Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڶԵȷ<EFBFBD><EFBFBD>и<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>٣<EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD>顣
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ܶ<EFBFBD><EFBFBD>Եȷ<EFBFBD><EFBFBD><EFBFBD>ͬһ<EFBFBD><EFBFBD><EFBFBD>Եȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD>öԵȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>䷢<EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĶԵȷ<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
P2P <20><>һ<EFBFBD><D2BB><EFBFBD>ֲ<EFBFBD>ʽϵͳ<CFB5><CDB3><EFBFBD>κ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>жԵȷ<D4B5><C8B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˳<EFBFBD><CBB3><EFBFBD>ʹ<EFBFBD>÷ֲ<C3B7>ʽɢ<CABD>б<EFBFBD> DHT<48><54><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD><D4B2>Һ<EFBFBD><D2BA><EFBFBD><EFBFBD>е<EFBFBD><D0B5><EFBFBD>Դ<EFBFBD><D4B4> IP <20><>ַӳ<D6B7>䡣
|
||||
|
||||
## <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> www.baidu.com <20><>ִ<EFBFBD>е<EFBFBD>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
1<EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD> DNS <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> www.baidu.com <20><> IP <20><>ַ 220.181.27.48<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD>ҵ<EFBFBD><D2B5>ͻ<EFBFBD><CDBB>˵<EFBFBD><CBB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> HTTP <20>Ự<EFBFBD><E1BBB0> 220.161.27.48<EFBFBD><EFBFBD>Ȼ<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD> TCP <20><><EFBFBD>з<EFBFBD>װ<EFBFBD><D7B0><EFBFBD>ݰ<EFBFBD><DDB0><EFBFBD><EFBFBD><EFBFBD><EFBFBD>뵽<EFBFBD><EBB5BD><EFBFBD><EFBFBD><EFBFBD>㡣
|
||||
|
||||
2<EFBFBD><EFBFBD><EFBFBD>ڿͻ<EFBFBD><EFBFBD>˵Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>㣬<EFBFBD><EFBFBD> HTTP <20>Ự<EFBFBD><E1BBB0><EFBFBD><EFBFBD><EFBFBD>ֳɱ<D6B3><C9B1>ĶΣ<C4B6><CEA3><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4>Ŀ<EFBFBD>Ķ˿ڣ<CBBF><DAA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> 80 <20>˿ڼ<CBBF><DABC><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB>˵<EFBFBD><CBB5><EFBFBD><EFBFBD>ͻ<F3A3ACBF><CDBB><EFBFBD><EFBFBD><EFBFBD>ϵͳ<CFB5><CDB3><EFBFBD><EFBFBD>ѡ<EFBFBD><D1A1>һ<EFBFBD><D2BB><EFBFBD>˿<EFBFBD><CBBF><EFBFBD> 5000<30><30><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>н<EFBFBD><D0BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD>ظ<F3B7B5BB><D8B8>ͻ<EFBFBD><CDBB>˵<EFBFBD> 5000 <20>˿ڡ<CBBF>Ȼ<EFBFBD><C8BB>ʹ<EFBFBD><CAB9> IP <20><><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ŀ<EFBFBD>Ķˡ<C4B6>
|
||||
|
||||
3<EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>㲻<EFBFBD>ù<EFBFBD>ϵӦ<EFBFBD>ò<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ɱ<EFBFBD>ȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ε<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɵĹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǿ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>ɱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD>Ǹ<EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
4<EFBFBD><EFBFBD><EFBFBD>ͻ<EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>㣬<EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD>㷢<EFBFBD>͵<EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD>ھ<EFBFBD>Э<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҹ<EFBFBD><EFBFBD><EFBFBD> IP <20><>ַ<EFBFBD><D6B7> MAC <20><>ַ<EFBFBD><D6B7>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ARP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õ<EFBFBD><C3B5><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD>Ϳ<EFBFBD><CDBF><EFBFBD>ʹ<EFBFBD><CAB9> ARP <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><F0BDBBBB><EFBFBD> IP <20><><EFBFBD>ݰ<EFBFBD><DDB0><EFBFBD><EFBFBD>ھͿ<DABE><CDBF>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD>ˣ<EFBFBD>Ȼ<EFBFBD><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD> IP <20><><EFBFBD>ݰ<EFBFBD><DDB0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ַ<EFBFBD><D6B7>
|
||||
|
||||
|
||||
## <20><><EFBFBD>ö˿<C3B6>
|
||||
|
||||
| Ӧ<>ò<EFBFBD>Э<EFBFBD><D0AD> | <20>˿ں<CBBF> | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Э<EFBFBD><D0AD> |
|
||||
| -- | -- | -- |
|
||||
| DNS | 53 | UDP |
|
||||
| FTP | <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 21<32><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 20 | TCP |
|
||||
| TELNET | 23 | TCP |
|
||||
| DHCP | 67 68 | UDP |
|
||||
| HTTP | 80 | TCP |
|
||||
| SMTP | 25 | TCP |
|
||||
| POP3 | 110 | TCP |
|
||||
| IMAP | 143 | TCP |
|
||||
|
||||
# <20>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
- <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>߰<EFBFBD>
|
||||
- <20>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
- [ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><D6AE><EFBFBD>Գ<EFBFBD><D4B3><EFBFBD> ](https://www.nowcoder.com/discuss/1937)
|
||||
1744
notes/设计模式.md
Normal file
1744
notes/设计模式.md
Normal file
File diff suppressed because it is too large
Load Diff
307
notes/面向对象思想.md
Normal file
307
notes/面向对象思想.md
Normal file
@ -0,0 +1,307 @@
|
||||
<!-- GFM-TOC -->
|
||||
* [S.O.L.I.D](#solid)
|
||||
* [1. <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>](#1-<2D><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>)
|
||||
* [2. <20><><EFBFBD>ŷ<EFBFBD><C5B7><EFBFBD>ԭ<EFBFBD><D4AD>](#2-<2D><><EFBFBD>ŷ<EFBFBD><C5B7><EFBFBD>ԭ<EFBFBD><D4AD>)
|
||||
* [3. <20><><EFBFBD><EFBFBD><EFBFBD>滻ԭ<E6BBBB><D4AD>](#3-<2D><><EFBFBD><EFBFBD><EFBFBD>滻ԭ<E6BBBB><D4AD>)
|
||||
* [4. <20>ӿڷ<D3BF><DAB7><EFBFBD>ԭ<EFBFBD><D4AD>](#4-<2D>ӿڷ<D3BF><DAB7><EFBFBD>ԭ<EFBFBD><D4AD>)
|
||||
* [5. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>](#5-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>)
|
||||
* [<EFBFBD><EFBFBD>װ<EFBFBD><EFBFBD><EFBFBD>̳С<EFBFBD><EFBFBD><EFBFBD>̬](#<23><>װ<EFBFBD>̳ж<CCB3>̬)
|
||||
* [1. <20><>װ](#1-<2D><>װ)
|
||||
* [2. <20>̳<EFBFBD>](#2-<2D>̳<EFBFBD>)
|
||||
* [3. <20><>̬](#3-<2D><>̬)
|
||||
* [UML](#uml)
|
||||
* [1. <20><>ͼ](#1-<2D><>ͼ)
|
||||
* [2. ʱ<><CAB1>ͼ](#2-ʱ<><CAB1>ͼ)
|
||||
* [<EFBFBD>ο<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD>)
|
||||
<!-- GFM-TOC -->
|
||||
|
||||
# S.O.L.I.D
|
||||
|
||||
S.O.L.I.D<><44><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƺͱ<C6BA><CDB1><EFBFBD>(OOD&OOP)<29>м<EFBFBD><D0BC><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>(Programming Priciple)<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8>д<EFBFBD><D0B4>
|
||||
|
||||
|<7C><>д |ȫƴ |<7C><><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD>|
|
||||
| -- | -- | -- |
|
||||
|SRP| The Single Responsibility Principle |<7C><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>|
|
||||
|OCP| The Open Closed Principle | <20><><EFBFBD>ŷ<EFBFBD><C5B7><EFBFBD>ԭ<EFBFBD><D4AD>|
|
||||
|LSP| The Liskov Substitution Principle |<7C><><EFBFBD><EFBFBD><EFBFBD>滻ԭ<E6BBBB><D4AD>|
|
||||
|ISP| The Interface Segregation Principle |<7C>ӿڷ<D3BF><DAB7><EFBFBD>ԭ<EFBFBD><D4AD>|
|
||||
|DIP| The Dependency Inversion Principle |<7C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>|
|
||||
|
||||
|
||||
## 1. <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>仰˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Σ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ε<EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ࡣ
|
||||
|
||||
## 2. <20><><EFBFBD>ŷ<EFBFBD><C5B7><EFBFBD>ԭ<EFBFBD><D4AD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><EFBFBD><EFBFBD>չ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵġ<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>չ<EFBFBD>ǿ<EFBFBD><EFBFBD>ŵģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>յġ<EFBFBD>
|
||||
|
||||
## 3. <20><><EFBFBD><EFBFBD><EFBFBD>滻ԭ<E6BBBB><D4AD>
|
||||
|
||||
<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><EFBFBD>滻<EFBFBD>κ<EFBFBD><EFBFBD>䳬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD>ž<EFBFBD><EFBFBD><EFBFBD> is-a <20><>ϵ<EFBFBD><CFB5>
|
||||
|
||||
## 4. <20>ӿڷ<D3BF><DAB7><EFBFBD>ԭ<EFBFBD><D4AD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>ȥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD><EFBFBD><EFBFBD>Dz<EFBFBD>ʹ<EFBFBD>õĽӿڡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>仰˵<EFBFBD><EFBFBD>ʹ<EFBFBD>ö<EFBFBD><EFBFBD><EFBFBD>ר<EFBFBD>ŵĽӿڱ<EFBFBD>ʹ<EFBFBD>õ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ܽӿ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>á<EFBFBD>
|
||||
|
||||
## 5. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>
|
||||
|
||||
1. <20>߲<EFBFBD>ģ<EFBFBD>鲻Ӧ<E9B2BB><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵͲ<DAB5>ģ<EFBFBD>飬<EFBFBD><E9A3AC><EFBFBD>߶<EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD><DAB3><EFBFBD>
|
||||
2. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϸ<EFBFBD>ڣ<EFBFBD>ϸ<EFBFBD><CFB8>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD><DAB3><EFBFBD>
|
||||
|
||||
# <20><>װ<EFBFBD><D7B0><EFBFBD>̳С<CCB3><D0A1><EFBFBD>̬
|
||||
|
||||
<EFBFBD><EFBFBD>װ<EFBFBD><EFBFBD><EFBFBD>̳С<EFBFBD><EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԡ<EFBFBD>
|
||||
|
||||
## 1. <20><>װ
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݺͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵIJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>װ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>乹<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɷָ<EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>壬<EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD>ϸ<EFBFBD>ڣ<EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һЩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿ<EFBFBD>ʹ֮<EFBFBD><EFBFBD><EFBFBD>ⲿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֪<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD>ϸ<EFBFBD>ڣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD>Ľӿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʸö<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>װ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
1. <20><><EFBFBD>õķ<C3B5>װ<EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϡ<EFBFBD>
|
||||
|
||||
2. <20><><EFBFBD>ڲ<EFBFBD><DAB2>Ľṹ<C4BD><E1B9B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ġ<DEB8>
|
||||
|
||||
3. <20><><EFBFBD>ԶԳ<D4B6>Ա<EFBFBD><D4B1><EFBFBD>и<EFBFBD><D0B8><EFBFBD>ȷ<EFBFBD>Ŀ<EFBFBD><C4BF>ơ<EFBFBD>
|
||||
|
||||
4. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>ʵ<EFBFBD><CAB5>ϸ<EFBFBD>ڡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD> Person <20><><EFBFBD><EFBFBD>װ name<6D><65>gender<65><72>age <20><><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB>ͨ<EFBFBD><CDA8> get() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡһ<C8A1><D2BB> Person <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> name <20><><EFBFBD>Ժ<EFBFBD> gender <20><><EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD><EFBFBD><EFBFBD><DEB7><EFBFBD>ȡ age <20><><EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD><EFBFBD><EFBFBD> age <20><><EFBFBD>Կ<EFBFBD><D4BF>Թ<EFBFBD> work() <20><><EFBFBD><EFBFBD>ʹ<EFBFBD>á<EFBFBD>
|
||||
|
||||
ע<EFBFBD> gender <20><><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> int <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͽ<EFBFBD><CDBD>д洢<D0B4><E6B4A2><EFBFBD><EFBFBD>װʹ<D7B0><CAB9><EFBFBD>û<EFBFBD>ע<EFBFBD>ⲻ<EFBFBD><E2B2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5>ϸ<EFBFBD>ڡ<EFBFBD><DAA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD>ʹ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>Ӱ<EFBFBD><D3B0><EFBFBD>ͻ<EFBFBD><CDBB>˴<EFBFBD><CBB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>½<EFBFBD><C2BD>С<EFBFBD>
|
||||
|
||||
```java
|
||||
public class Person {
|
||||
private String name;
|
||||
private int gender;
|
||||
private int age;
|
||||
|
||||
public String getName() {
|
||||
return name;
|
||||
}
|
||||
|
||||
public String getGender() {
|
||||
return gender == 0 ? "man" : "woman";
|
||||
}
|
||||
|
||||
public void work() {
|
||||
if(18 <= age && age <= 50) {
|
||||
System.out.println(name + " is working very hard!");
|
||||
} else {
|
||||
System.out.println(name + " can't work!");
|
||||
}
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
## 2. <20>̳<EFBFBD>
|
||||
|
||||
<EFBFBD>̳<EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> **is-a** <20><>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Cat <20><> Animal <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> is-a <20><>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD>˿<EFBFBD><CBBF>Խ<EFBFBD> Cat <20>̳<EFBFBD><CCB3><EFBFBD> Animal<61><6C><EFBFBD>Ӷ<EFBFBD><D3B6><EFBFBD><EFBFBD><EFBFBD> Animal <20><> private <20><><EFBFBD><EFBFBD><EFBFBD>Ժͷ<D4BA><CDB7><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
Cat <20><><EFBFBD>Ե<EFBFBD><D4B5><EFBFBD> Animal <20><>ʹ<EFBFBD>ã<EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>ǿ<EFBFBD><C7BF><EFBFBD>ʹ<EFBFBD><CAB9> Animal <20><><EFBFBD><EFBFBD> Cat <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ **<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD>**<2A><>
|
||||
|
||||
<EFBFBD>̳<EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>滻ԭ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><EFBFBD>滻<EFBFBD>κ<EFBFBD><EFBFBD>䳬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD>ž<EFBFBD><EFBFBD><EFBFBD> is-a <20><>ϵ<EFBFBD><CFB5>
|
||||
|
||||
```java
|
||||
Animal animal = new Cat();
|
||||
```
|
||||
|
||||
## 3. <20><>̬
|
||||
|
||||
<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD>Ҫָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>װ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ָ̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD>ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ<EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1. <20>̳У<CCB3>2. <20><><EFBFBD>Ǹ<EFBFBD><C7B8><EFBFBD><E0B7BD><EFBFBD><EFBFBD>3. <20><><EFBFBD><EFBFBD>ת<EFBFBD>͡<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ࣨInstrument<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ࣺWind <20><> Percussion<6F><6E><EFBFBD><EFBFBD><EFBFBD>Ƕ<EFBFBD><C7B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> play() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> main() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ø<EFBFBD><C3B8><EFBFBD> Instrument <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Wind <20><> Percussion <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Instrument <20><><EFBFBD>õ<EFBFBD><C3B5><EFBFBD> play() <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> play() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Instrument <20><><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
public class Instrument {
|
||||
public void play() {
|
||||
System.out.println("Instument is playing...");
|
||||
}
|
||||
}
|
||||
|
||||
public class Wind extends Instrument {
|
||||
public void play() {
|
||||
System.out.println("Wind is playing...");
|
||||
}
|
||||
}
|
||||
|
||||
public class Percussion extends Instrument {
|
||||
public void play() {
|
||||
System.out.println("Percussion is playing...");
|
||||
}
|
||||
}
|
||||
|
||||
public class Music {
|
||||
public static void main(String[] args){
|
||||
List<Instrument> instruments = new ArrayList<>();
|
||||
instruments.add(new Wind());
|
||||
instruments.add(new Percussion());
|
||||
for(Instrument instrument : instruments){
|
||||
instrument.play();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
|
||||
|
||||
# UML
|
||||
|
||||
## 1. <20><>ͼ
|
||||
|
||||
**1.1 <20>̳<EFBFBD><CCB3><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
<EFBFBD>̳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ: <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>generalize<7A><65><EFBFBD><EFBFBD>ʵ<EFBFBD>֣<EFBFBD>realize<7A><65><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ is-a <20><>ϵ<EFBFBD><CFB5>
|
||||
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ(generalization)
|
||||
|
||||
<EFBFBD>Ӿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>м̳<EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD> ʵ<>ֹ<EFBFBD>ϵ(realize)
|
||||
|
||||
<EFBFBD>ӳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߽ӿ<EFBFBD><EFBFBD>м̳<EFBFBD>
|
||||
|
||||
|
||||
|
||||
**1.2 <20><><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><CDB2><EFBFBD>**
|
||||
|
||||
<EFBFBD><EFBFBD> <20>ۺϹ<DBBA>ϵ(aggregation)
|
||||
|
||||
<EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD>ֲ<EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>岻<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˲<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>ǻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>±<EFBFBD>ʾ B <20><> A <20><><EFBFBD>ɣ<EFBFBD>
|
||||
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD>Ϲ<EFBFBD>ϵ(composition)
|
||||
|
||||
<EFBFBD>;ۺϲ<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>岻<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˲<EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>繫˾<EFBFBD>Ͳ<EFBFBD><EFBFBD>ţ<EFBFBD><EFBFBD><EFBFBD>˾û<EFBFBD>˲<EFBFBD><EFBFBD>žͲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǹ<EFBFBD>˾<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ھۺϹ<EFBFBD>ϵ<EFBFBD>ˣ<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>˾û<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڡ<EFBFBD>
|
||||
|
||||
|
||||
|
||||
**1.3 <20><EFBFBD><E0BBA5>ϵ**
|
||||
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ(association)
|
||||
|
||||
<EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>־<EFBFBD>̬<EFBFBD><EFBFBD>ϵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><EFBFBD>̵<EFBFBD>״̬<EFBFBD>أ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD>Ϳ<EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 <20><> 1<><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1<><31><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD>ֹ<EFBFBD><D6B9><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>ѧУ<D1A7><D0A3><EFBFBD><EFBFBD>һ<EFBFBD>ֹ<EFBFBD><D6B9><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5>һ<EFBFBD><D2BB>ѧУ<D1A7><D0A3><EFBFBD><EFBFBD><EFBFBD>кܶ<D0BA>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ѧ<EFBFBD><D1A7>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ѧУ<D1A7><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>ֶ<EFBFBD><D6B6><EFBFBD>һ<EFBFBD>Ĺ<EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD>ʼ֮ǰ<D6AE>Ϳ<EFBFBD><CDBF><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ(dependency)
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õġ<C3B5>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>Ĺ<EFBFBD><C4B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߷<EFBFBD><DFB7><EFBFBD><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>롣˫<EBA1A3><CBAB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱһ<CAB1>ֲ<EFBFBD><D6B2>õ<EFBFBD><C3B5><EFBFBD><EFBFBD>ơ<EFBFBD>
|
||||
|
||||
|
||||
|
||||
|
||||
## 2. ʱ<><CAB1>ͼ
|
||||
|
||||
**2.1 <20><><EFBFBD><EFBFBD>**
|
||||
|
||||
ʱ<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˶<EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD>䴫<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ˳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ע<EFBFBD><EFBFBD><EFBFBD>Ƕ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӷ<EFBFBD>Ѱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**2.2 <20><><EFBFBD><EFBFBD>֮սʱ<D5BD><CAB1>ͼ**
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>±<EFBFBD>ʾʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƽ<EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
<EFBFBD>ɼ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֪<EFBFBD><EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>²<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
```java
|
||||
publc class <EFBFBD><EFBFBD><EFBFBD><EFBFBD> {
|
||||
public void Ӧս();
|
||||
}
|
||||
|
||||
publc class <EFBFBD><EFBFBD><EFBFBD><EFBFBD> {
|
||||
public void <EFBFBD>ⶨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>();
|
||||
public void <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȩ();
|
||||
private void <EFBFBD>趫<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>();
|
||||
}
|
||||
|
||||
public class <EFBFBD><EFBFBD><EFBFBD><EFBFBD> {
|
||||
public void <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>G<EFBFBD><EFBFBD>();
|
||||
}
|
||||
|
||||
public class <EFBFBD>ŷ<EFBFBD> {
|
||||
public void <EFBFBD><EFBFBD><EFBFBD>ؾ<EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><EFBFBD>();
|
||||
}
|
||||
|
||||
public class <EFBFBD><EFBFBD>Ȩ {
|
||||
public void <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>();
|
||||
}
|
||||
```
|
||||
|
||||
**2.3 <20>ͼ<EEB6AF><CDBC>ʱ<EFBFBD><CAB1>ͼ֮<CDBC><D6AE><EFBFBD>Ĺ<EFBFBD>ϵ**
|
||||
|
||||
<EFBFBD>ͼʾ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD>ĽǶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
ʱ<EFBFBD><EFBFBD>ͼ<EFBFBD>ǴӼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĽǶȣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
**2.4 <20><>ͼ<EFBFBD><CDBC>ʱ<EFBFBD><CAB1>ͼ<EFBFBD>Ĺ<EFBFBD>ϵ**
|
||||
|
||||
<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD>ľ<EFBFBD>̬<EFBFBD>ṹ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD>Ķ<EFBFBD>̬<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>
|
||||
|
||||
**2.5 ʱ<><CAB1>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**
|
||||
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ
|
||||
|
||||
|
||||
|
||||
<EFBFBD>ڻ<EFBFBD>ͼʱ<EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
1. <20>ѽ<EFBFBD><D1BD><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><F3BEA1BF>ܵؿ<DCB5>£<EFBFBD><C2A3>
|
||||
|
||||
2. <20>ѳ<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߣ<EFBFBD><DFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߡ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߴӶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ֹ
|
||||
|
||||
|
||||
|
||||
<EFBFBD><EFBFBD> <20><>Ϣ
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD>ʽͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD>ʵ<EFBFBD>ֵġ<EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD>4<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>
|
||||
|
||||
1\. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD>첽<EFBFBD><ECB2BD>
|
||||
|
||||
|
||||
|
||||
2\. ͬ<><CDAC><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ֮<CFA2><D6AE><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA>ͣ<EFBFBD><EFBFBD><EEB6AF><EFBFBD>ȴ<EFBFBD><C8B4><EFBFBD>Ӧ<EFBFBD><D3A6>
|
||||
|
||||
|
||||
|
||||
3\. <20>첽<EFBFBD><ECB2BD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ֮<CFA2><D6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ȴ<EFBFBD><C8B4><EFBFBD>
|
||||
|
||||
|
||||
|
||||
4\. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD>ѡ<EFBFBD><D1A1>
|
||||
|
||||
<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
|
||||
|
||||
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>䴦<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD>
|
||||
|
||||
|
||||
|
||||
|
||||
# <20>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD>
|
||||
|
||||
- Java <20><><EFBFBD><EFBFBD>˼<EFBFBD><CBBC>
|
||||
|
||||
- [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD>SOLIDԭ<EFBFBD><EFBFBD>](http://www.cnblogs.com/shanyou/archive/2009/09/21/1570716.html)
|
||||
|
||||
- [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>UML<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ͼ](http://design-patterns.readthedocs.io/zh_CN/latest/read_uml.html#generalization)
|
||||
|
||||
- [UMLϵ<EFBFBD>С<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD>sequence diagram](http://www.cnblogs.com/wolf-sun/p/UML-Sequence-diagram.html)
|
||||
|
||||
- [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>------<2D><>װ<EFBFBD><D7B0><EFBFBD>̳С<CCB3><D0A1><EFBFBD>̬](http://blog.csdn.net/jianyuerensheng/article/details/51602015)
|
||||
Reference in New Issue
Block a user