正则表达式 - 匹配任何东西 [英] Regular Expressions- Match Anything

问题描述

如何使表达式完全匹配任何内容(包括空格)?
示例:

How do I make an expression to match absolutely anything (including whitespaces)?
Example:

正则表达式:我买了 _____ 只羊.

Regex: I bought _____ sheep.

火柴:我买了羊.我买了一只羊.我买了五只羊.

Matches: I bought sheep. I bought a sheep. I bought five sheep.

我尝试使用 (.*)，但这似乎不起作用.

I tried using (.*), but that doesn't seem to be working.

推荐答案

通常点匹配任何字符换行符.

因此，如果 .* 不起作用，请设置点匹配换行符"选项(或使用 (?s).*).

So if .* isn't working, set the "dot matches newlines, too" option (or use (?s).*).

如果您使用的 JavaScript 没有dotall"选项，请尝试 [\s\S]*.这意味着匹配任意数量的空白或非空白字符"——实际上是匹配任何字符串".

If you're using JavaScript, which doesn't have a "dotall" option, try [\s\S]*. This means "match any number of characters that are either whitespace or non-whitespace" - effectively "match any string".

另一个仅适用于 JavaScript(并且不被任何其他正则表达式识别)的选项是 [^]*，它也匹配任何字符串.但是 [\s\S]* 似乎使用更广泛，也许是因为它更便携.

Another option that only works for JavaScript (and is not recognized by any other regex flavor) is [^]* which also matches any string. But [\s\S]* seems to be more widely used, perhaps because it's more portable.

这篇关于正则表达式 - 匹配任何东西的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！