需要将我的正则表达式更改为特殊字符 [英] Need to change my Regular expression for special characters

问题描述

我需要有一个正则表达式来检查密码中密码的任何地方是否至少有一个字符和一个特殊字符.因此，我使用了以下正则表达式，

I need to have a regular expression to check if the password has atleast one character and one special character anywhere in the password. Hence i used the below regular expression,

if (!System.Text.RegularExpressions.Regex.IsMatch(a, "^(?=.*[#@].*)(?=.*[a-zA-Z].*)[a-zA-Z0-9#@]{6,15}$"))
{...}

但是此正则表达式不允许特殊字符位于密码的末尾.例如，它允许test！6767，但不允许test6767!.

请告诉我我应该在外部表达式中做些什么

谢谢

But this regular expression doesnot allow the special character to be last of the password. Say for example, it allows test!6767 but it doesnot allow test6767!.

Please tell me what i change i should do in the external expression

Thanks

推荐答案

")) {...}

")) {...}

但是此正则表达式不允许特殊字符位于密码的末尾.举例来说，它允许test！6767，但不允许test6767!.

请告诉我我应该在外部表达式中做些什么

谢谢

But this regular expression doesnot allow the special character to be last of the password. Say for example, it allows test!6767 but it doesnot allow test6767!.

Please tell me what i change i should do in the external expression

Thanks

从我对问题的回答

From my answer to the question How to verify a password which contain .......[^]

(?=^.{8})(?=.*[a-z])(?=.*[A-Z])(?=.*[^\w\d])(?=.*\d).*

(?=^.{8})
最小长度

(?=.*[a-z])
验证至少一个小写字符

(?=.*[A-Z])
验证至少一个大写字符

(?=.*[^\w\d])
验证至少一个特殊字符

(?=.*\d)
验证至少一位数字

(?=^.{8})
The minimum length

(?=.*[a-z])
Verify atleast one lowercase character

(?=.*[A-Z])
Verify atleast one uppercase character

(?=.*[^\w\d])
Verify atleast one special character

(?=.*\d)
Verify atleast one digit

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