1.^取反
2.正则表达式格式
https://www.jiangweishan.com/article/jsuwe808230984092384098.html
3./g
全部匹配
4.正则表达式方法
https://www.jb51.net/article/124041.htm
http://www.maomao365.com/?p=15732
^以什么开头
$以什么结尾
+个数
const regx = /^[\u4e00-\u9fa5]+$/g
https://www.jiangweishan.com/article/jsuwe808230984092384098.html
全部匹配
https://www.jb51.net/article/124041.htm
http://www.maomao365.com/?p=15732
^以什么开头
$以什么结尾
+个数
const regx = /^[\u4e00-\u9fa5]+$/g
本文标题:1.^限定开头、取反
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