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Update 12.字符串和正则表达式.md 

correct description about re.search() and re.match()
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bernard-shen 2021-02-15 12:23:07 +08:00 committed by GitHub
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Day01-15/12.字符串和正则表达式.md
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@ -53,8 +53,8 @@ Python提供了re模块来支持正则表达式相关操作，下面是re模块
| 函数 | 说明 |
| -------------------------------------------- | ------------------------------------------------------------ |
| compile(pattern, flags=0) | 编译正则表达式返回正则表达式对象 |
| match(pattern, string, flags=0) | 用正则表达式匹配字符串 成功返回匹配对象 否则返回None |
| search(pattern, string, flags=0) | 搜索字符串中第一次出现正则表达式的模式 成功返回匹配对象 否则返回None |
| match(pattern, string, flags=0) | 搜索字符串中第一次出现正则表达式的模式 成功返回匹配对象 否则返回None|
| search(pattern, string, flags=0) | 用正则表达式匹配字符串 成功返回匹配对象 否则返回None |
| split(pattern, string, maxsplit=0, flags=0) | 用正则表达式指定的模式分隔符拆分字符串 返回列表 |
| sub(pattern, repl, string, count=0, flags=0) | 用指定的字符串替换原字符串中与正则表达式匹配的模式 可以用count指定替换的次数 |
| fullmatch(pattern, string, flags=0) | match函数的完全匹配（从字符串开头到结尾）版本 |