need help to create regular expression [closed]

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i need regular expression which is not allow &#39 开发者_如何学Python

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If you want to say "match any character but zzz," use [^].

[^']+ will match one or more characters, up until it hits a '.

If you want to make sure the entire string does not contain the specified character:

^[^']*$

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This will match only strings that do not contain a single quotation mark (your question is very unspecific so I have no idea if that's what you want, please be as specific as possible and describe what you really want to do):

/^[^']*$/