re.seacher 或 re.findall 怎么引入变量呢? - V2EX
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maloneleo88

re.seacher 或 re.findall 怎么引入变量呢?

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  •   maloneleo88 Mar 30, 2021 1800 views
    This topic created in 1853 days ago, the information mentioned may be changed or developed.
    re.findall(r''+ str(i) + '.*?sclassid=(\d+)',res)

    这个上网上查的,不管用。 去掉 str()也不管用。 说+紧贴着 r''

    正确写法是什么吖?
    4 replies    2021-03-31 02:22:19 +08:00
    ClericPy
        1
    ClericPy  
       Mar 30, 2021
    你不如直接说需求... 感觉路都走窄了

    要不试试 re.escape ?
    maloneleo88
        2
    maloneleo88  
    OP
       Mar 30, 2021
    @ClericPy 就是我要拿一个值去返回搜索,看看有没有这个值的对应值,如果有,执行第一个解析函数,如果没有,执行第二个解析函数。

    如果我直接一步到位拿元组列表。 那没有对应值的就取不到。 所以想值拿单一值,回头再去看看有没有对应的,没有就直接执行函数 2,有的话,执行函数 1
    ch2
        3
    ch2  
       Mar 30, 2021
    str.format
    re.compile
    maloneleo88
        4
    maloneleo88  
    OP
       Mar 31, 2021 via iPhone
    @ch2 搞定了 谢谢, 没弄明白 我把第二串整个摘出来了再 seacher 一次_
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