正则表达式匹配数字和字符 [英] regular expression match digit and characters
本文介绍了正则表达式匹配数字和字符的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
如何创建仅匹配字符和数字的正则表达式?
How can I create a regex expression that will match only characters and numbers?
此正则表达式匹配的宽度数字:/\ D/g
this regex matched width digit:
/\D/g
如何在其中添加-
, _
, *
等字符?
how can add characters like -
, _
, *
and etc to it?
推荐答案
仅匹配字母和数字,
[A-Za-z0-9]
将想要的字符添加到上述字符类中,以匹配特定字符.
Add the characters you want into the above character class to match also that specific characters.
[A-Za-z0-9_*-]
您可以将上述正则表达式减少为
You could reduce the above regex to,
[\w*-]
这篇关于正则表达式匹配数字和字符的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文