JavaScript正则表达式语法的相关内容

文章 2023-02-10 来自：开发者社区

js正则表达式语法

1. 正则表达式规则 1.1 普通字符     字母、数字、汉字、下划线、以及后边章节中没有特殊定义的标点符号，都是"普通字符"。表达式中的普通字符，在匹配一个字符串的时候，匹配与之相同的一个字符。    举例1：表达式 "c"，在匹配字符串 "abcde" 时，匹配结果是：成功；匹配到的内容是："c"；匹配到的位置是：开始于2...

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更新时间 2024-05-23 12:19:01

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