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docs/notes/正则表达式.md
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<!-- GFM-TOC -->
* [一、概述](#一概述)
* [二、匹配单个字符](#二匹配单个字符)
* [三、匹配一组字符](#三匹配一组字符)
* [四、使用元字符](#四使用元字符)
* [五、重复匹配](#五重复匹配)
* [六、位置匹配](#六位置匹配)
* [七、使用子表达式](#七使用子表达式)
* [八、回溯引用](#八回溯引用)
* [九、前后查找](#九前后查找)
* [十、嵌入条件](#十嵌入条件)
* [参考资料](#参考资料)
<!-- GFM-TOC -->
[TOC]
# 一、概述
@ -173,7 +160,7 @@ a.+c
^\s*\/\/.*$
```
<div align="center"> <img src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/600e9c75-5033-4dad-ae2b-930957db638e.png"/> </div><br>
![](pics/600e9c75-5033-4dad-ae2b-930957db638e.png)
**匹配结果**
@ -388,10 +375,3 @@ aBCd
# 参考资料
- BenForta. 正则表达式必知必会 [M]. 人民邮电出版社, 2007.
<div align="center"><img width="320px" src="https://cs-notes-1256109796.cos.ap-guangzhou.myqcloud.com/githubio/公众号二维码-1.png"></img></div>