如何用正则表达式匹配连字符?

How to match hyphens with Regular Expression?(如何用正则表达式匹配连字符?)

问题描述

How to rewrite the [a-zA-Z0-9!$* ] pattern to match hyphen along with the existing characters ?

Escape the hyphen.

[a-zA-Z0-9!$* 	
-]

UPDATE:
Never mind this answer - you can add the hyphen to the group but you don't have to escape it. See Konrad Rudolph's answer instead which does a much better job of answering and explains why.

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