re split 正则表达式 - V2EX
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coldx11
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re split 正则表达式

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  •   coldx11 2022-08-03 15:39:28 +08:00 828 次点击
    这是一个创建于 1166 天前的主题,其中的信息可能已经有所发展或是发生改变。

    re.split(r",(?![^(]))", a) 其中(?![^(]))拆解分析一下?

    3 条回复    2022-08-03 16:19:04 +08:00
    iNaru
        1
    iNaru  
       2022-08-03 15:57:35 +08:00
    [^(] 匹配除左括号的字符
    (?![^(])匹配后面后面跟着不是“除左括号的字符”的位置
    -> 匹配左括号前面的位置,等同于(?=\()
    iNaru
        2
    iNaru  
       2022-08-03 15:58:19 +08:00
    @iNaru 第二行多了“后面”
    wxf666
        3
    wxf666  
       2022-08-03 16:19:04 +08:00
    我怀疑你原正则是『,(?![^(]*))』

    匹配一个『,』,但它后面不能是字符串『「任意个非左括号字符」+「一个右括号字符」』

    regex101 可能适合你
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