正则表达式字母、数字、破折号和下划线 [英] Regex Letters, Numbers, Dashes, and Underscores

问题描述

我不确定如何实现此匹配表达式.目前我正在使用，

Im not sure how I can achieve this match expression. Currently I am using,

([A-Za-z0-9-]+)

...匹配字母和数字.我还想在同一个表达式中匹配破折号和下划线.有人知道怎么做吗?

...which matches letters and numbers. I would also like to match on dashes and underscores in the same expression. Anyone know how?

我希望能够匹配 product_name 和 product-name

I would like to be able to match product_name and product-name

推荐答案

只需对破折号进行转义以防止它们被解释(我认为下划线不需要转义，但它不会造成伤害).你没有说你使用的是哪个正则表达式.

Just escape the dashes to prevent them from being interpreted (I don't think underscore needs escaping, but it can't hurt). You don't say which regex you are using.

([A-Za-z0-9\-\_]+)

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