与 匹配的正则是什么? 这是 * 某种文本 *. 但不是 这是 * 另一种 * text 。 regex 应该匹配星号之间的文本 。
pattern = "*(w+(?:s+w+)*)*"
re.findall(pattern, "this is *some text*.") // return some text
re.findall(pattern, "this is *another *text") // return nothing
* 改为美元:
subpattern = "(*(w+(?:s+w+)*)*)"
re.sub(subpattern, r"$2$", "this is *some text*.") // return this is $some text$.
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