正则表达式允许至少一个特殊字符，一个大写，一个小写(以任何顺序) [英] regex to allow atleast one special character, one uppercase, one lowercase(in any order)

问题描述

谁能帮我用一个正则表达式来允许至少一个特殊字符，一个大写，一个小写.

Can anyone help me with a regex to allow atleast one special character, one uppercase, one lowercase.

这是我目前所拥有的:

 ^.*(?=.{8,})(?=.*[a-z])(?=.*[A-Z])(?=.*[@#$%^&+=]).*$

但它似乎只能按照特殊字符"、大写"、小写"的顺序匹配字符.

but it seems to match the characters only in the order "special character", "uppercase", "lowercase".

非常感谢任何帮助

推荐答案

你的正则表达式

^.*(?=.{8,})(?=.*[a-z])(?=.*[A-Z])(?=.*[@#$%^&+=]).*$

实际上应该可以正常工作，但是您可以通过删除第一个 .* 使其更好:

should actually work just fine, but you can make it a lot better by removing the first .*:

^(?=.{8,})(?=.*[a-z])(?=.*[A-Z])(?=.*[@#$%^&+=]).*$

将匹配至少包含一个小写和一个大写 ASCII 字符以及至少一个来自 @#$%^&+= 集合的至少 8 个字符的字符串(在任何顺序).

will match any string of at least 8 characters that contains at least one lowercase and one uppercase ASCII character and also at least one character from the set @#$%^&+= (in any order).

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