Question

正则表达式(?=.*\d)(?=.*[a-zA-Z])(?=.*[^a-zA-Z0-9]).{8,30}求大神帮忙改改，只需要字母和数字就行。

Answer 1

^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])[a-zA-Z0-9]{8,30}这样就行

Answer 2

(?=.*\d)(?=.*[a-zA-Z])(?=.*[^a-zA-Z0-9])[a-zA-Z0-9]{8,30}

Answer 3

[a-zA-Z0-9]*

Answer 4

^(?=.*[a-zA-Z])(?=.*\\d)[a-zA-Z\\d]+$

Answer 5

你这个正则表达式应该是有问题的、、、
你详细说说你要匹配啥？