能否请人帮助我对 request= request= 和 & gt; 之间的字符串进行regex?
例如, requent=_is_the_text_I_ need' & gt; regex 会返回 this_is_the_text_I_需要 。
这将工作 : request=(.+? )" & gt; 。 它将提取在 requent/code> 和 之间的任何文本。 它应该允许您通过使用regex 群組访问该值 。
注:我假设你用单引号来表示你所追求的答案,而不要把它们作为返回值的一部分。
/request=([^"]+)">/
request= : Match "request="
([^"]+) : Match anything other than " one or more and add it to first group.
皮顿:
>>> re.match( request=([^"]+)"> , request=this_is_the_text_I_need"> ).group(1)
this_is_the_text_I_need
您要查找的是外观和外观后面的语句。 例如, 在 < code> grep 中 :
$> echo request=this_is_the_text_I_need"> | grep --only-matching --perl-regex "(?<=request=).*(?=">)"
this_is_the_text_I_need
(? < =request=). * (?= "\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\3三个三个三个三个部分:
(?<=request=) - indicates that matched string will be after request=..* - indicates that matched string could contain all posible symbols(?=">) - indicates that matched string will be before ">.Recently I discovered two amazing regular expression features: ?: and ?!. I was curious of other neat regex features. So maybe you would like to share some tricky regular expressions.
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