.net - 如何使用 .Net 的 RegEx 从字符串中提取所有 {} 标记？

Question

我需要从给定的字符串中提取用大括号标记的标记。

我已经尝试使用 Expresso 来构造一些可以解析的东西......

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"{Token1}asdasasd{Token2}asd asdacscadase dfb db {Token3}"
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并产生“Token1”、“Token2”、“Token3”

我试过使用..

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({.+})
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...但这似乎与整个表达式匹配。

有什么想法吗？

Answer 1

尝试

\{(.*?)\}

The \{ will escape the "{" (which has meaning in a RegEx).The \} likewise escapes the closing } backet.The .*? will take minimal data, instead of just .* which is "greedy" and takes everything it can.

If you have assurance that your tokens will (or need to) be of a specific format, you can replace .* with an appropriate character class. For example, in the likely case you want only words, you can use (\w*) in place of the (.*?) This has the advantage that closing } characters are not part of the class being matched in the inner expression, so you don't need the ? modifier).