正则表达式以匹配单个字符

Question

我想知道是否存在可以匹配字符串并在字符串中搜索“ =”的正则表达式。

Answer 1

Yes, but why? I simple string search for "=" is usually what you want (see String.IndexOf ). Doing a search for "=" using a regex means just using "=" as the regex, nothing special.

If you want to match rather than search you can use the regex .*=.*

Is this what you wanted or am I missing something?

Answer 2

/[=]+/

That will match if there is an = character one or more times anywhere in the string.