如何用正则表达式匹配连字符? [英] How to match hyphens with Regular Expression?
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问题描述
How to rewrite the [a-zA-Z0-9!$*
] pattern to match hyphen along with the existing characters ?
解决方案
Escape the hyphen.
[a-zA-Z0-9!$*
-]
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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