使用a-z和A-Z 0-9以及下划线和破折号的正则表达式 [英] regular expression that will take a-z and A-Z 0-9 and underscore and dash

问题描述

我正在Windows窗体中创建用户名字段.
我找到了很多正则表达式，但效果不好.
我找到了此正则表达式^ [a-z0-9 _-] {3,16} $
取值范围是3个字符到16个字符.但这不是大写字母.
我不是正则表达式专家.我在我给定的正则表达式中添加了该代码.
谁能帮帮我

在此先感谢

i am making a username field in windows form.
i have find many regex but result is not good.
I have find this regex ^[a-z0-9_-]{3,16}$
which is taking value between 3 character to 16 characters. But it is not taking uppercase letter.
I am not a regex guru. Niether i added that code in my given regex.
Can anyone help me out

thanks in advance

推荐答案

取值范围是3个字符到16个字符.但这不是大写字母.
我不是正则表达式专家.我在我给定的正则表达式中添加了该代码.
谁能帮帮我

在此先感谢

which is taking value between 3 character to 16 characters. But it is not taking uppercase letter.
I am not a regex guru. Niether i added that code in my given regex.
Can anyone help me out

thanks in advance

如何:
[a-zA-Z0-9_-]

也看看这个:
Expresso-用于构建和测试正则表达式的工具 [ ^ ]

How about:
[a-zA-Z0-9_-]

Take a look at this too:
Expresso - A Tool for Building and Testing Regular Expressions[^]

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