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notes/重构.md

@@ -161,6 +161,7 @@ class Customer {
 
 ```java
 class Rental {
+
     private int daysRented;
 
     private Movie movie;
@@ -199,6 +200,7 @@ class Movie {
 
 ```java
 public class App {
+
     public static void main(String[] args) {
         Customer customer = new Customer();
         Rental rental1 = new Rental(1, new Movie(Movie.Type1));
@@ -236,6 +238,7 @@ public class App {
 
 ```java
 class Customer {
+
     private List<Rental> rentals = new ArrayList<>();
 
     void addRental(Rental rental) {
@@ -254,6 +257,7 @@ class Customer {
 
 ```java
 class Rental {
+
     private int daysRented;
 
     private Movie movie;
@@ -294,8 +298,6 @@ class Price2 implements Price {
 ```
 
 ```java
-package imp2;
-
 class Price3 implements Price {
     @Override
     public double getCharge() {