【教程】详解Python正则表达式之： (?<=…) positive lookbehind assertion 后向匹配 /后向断言
crifan 13年前 (2012-11-14) 4942浏览 0评论
Python 2.7手册中的官方解释是： (?<=...) Matches if the current position in the string is preceded by a match for ... that...
标签：positive lookbehind assertion