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re

正则表达式笔记

1 re.match函数

尝试从字符串的 起始位置 匹配一个模式,如果不是起始位置匹配成功的话,match()就返回none。 返回为对象 $$ a =b $$

2 re.search方法

扫描整个字符串并返回 第一个成功 的匹配。 返回为对象

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