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/^[+-]?(\d|([1-9]\d+))(\.\d+)?$/
/\u4e00-\u9fa5/
/^((1[8-9])|([2-5]\d)|(6[0-5]))$/
/^(?!\d+$)(?![a-zA-Z]+$)[a-zA-Z0-9]{8,15}$/
/^ +| +$/g
/ +/g
The text was updated successfully, but these errors were encountered:
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正则基础
1.常用元字符
2.表示位置的元字符
3.表示数量的元字符
4.常用修饰符
5. 正则中两种表示或运算的方式 | []
6.用正则表达所有的字符
7.反字符集合[^abc]:
8.常用正则
/^[+-]?(\d|([1-9]\d+))(\.\d+)?$/
/\u4e00-\u9fa5/
/^((1[8-9])|([2-5]\d)|(6[0-5]))$/
/^(?!\d+$)(?![a-zA-Z]+$)[a-zA-Z0-9]{8,15}$/
/^ +| +$/g
/ +/g
The text was updated successfully, but these errors were encountered: