I wish to check if a password contains at least one letter and a number. special characters are accepted but not required...
我想检查一个密码是否包含至少一个字母和一个数字。特殊字符被接受，但不需要…
That will be a simple password checker.
这将是一个简单的密码检查器。
5 个解决方案
#1
22
You can use lookahead assertions to check for existence of any digit and any letter as:
您可以使用前视断言检查任何数字和任何字母是否存在:
^(?=.*[a-zA-Z])(?=.*[0-9])
#2
6
Using a single regex for this can lead to somewhat unreadable/unreliable code. It may make more sense to use simpler regexes eg [0-9] to check for the existence of a digit and break the requirements of your password strength checker into a multi-line if. Also this allows you to know more readily at what stage the validation failed and possibly make suggestions to the user.
为此使用一个regex可能导致某些不可读/不可靠的代码。使用更简单的regexes(如[0-9])检查一个数字的存在性，并将密码强度检查器的要求转换为多行if，可能更有意义。此外，这还允许您更容易地了解验证失败的阶段，并可能向用户提出建议。
#3
1
([0-9].*[a-zA-Z])\|([a-zA-Z].*[0-9])
Not sure if the pipe needs to be escaped in your regexp environment or not.
不确定管道是否需要在regexp环境中转义。
#4
0
/.*?(?:[a-z].*?[0-9]|[0-9].*?[a-z]).*?/
(just one possible solution)
(只是一个可能的解决方案)
#5
0
Simple solution to check for password containing at least one letter, at least one digit and no spaces:
简单的解决方案，检查密码包含至少一个字母，至少一个数字，没有空格:
\S*(\S*([a-zA-Z]\S*[0-9])|([0-9]\S*[a-zA-Z]))\S*
#1
22
You can use lookahead assertions to check for existence of any digit and any letter as:
您可以使用前视断言检查任何数字和任何字母是否存在:
^(?=.*[a-zA-Z])(?=.*[0-9])
#2
6
Using a single regex for this can lead to somewhat unreadable/unreliable code. It may make more sense to use simpler regexes eg [0-9] to check for the existence of a digit and break the requirements of your password strength checker into a multi-line if. Also this allows you to know more readily at what stage the validation failed and possibly make suggestions to the user.
为此使用一个regex可能导致某些不可读/不可靠的代码。使用更简单的regexes(如[0-9])检查一个数字的存在性，并将密码强度检查器的要求转换为多行if，可能更有意义。此外，这还允许您更容易地了解验证失败的阶段，并可能向用户提出建议。
#3
1
([0-9].*[a-zA-Z])\|([a-zA-Z].*[0-9])
Not sure if the pipe needs to be escaped in your regexp environment or not.
不确定管道是否需要在regexp环境中转义。
#4
0
/.*?(?:[a-z].*?[0-9]|[0-9].*?[a-z]).*?/
(just one possible solution)
(只是一个可能的解决方案)
#5
0
Simple solution to check for password containing at least one letter, at least one digit and no spaces:
简单的解决方案，检查密码包含至少一个字母，至少一个数字，没有空格:
\S*(\S*([a-zA-Z]\S*[0-9])|([0-9]\S*[a-zA-Z]))\S*