正则提问 - V2EX
zhuzhuaini

正则提问

  •  
  •   zhuzhuaini Nov 16, 2019 3461 views
    This topic created in 2373 days ago, the information mentioned may be changed or developed.
    现在有这样一个字符串:
    {'JSESSIONID': '29rshpmaj'}
    我想匹配除了{}'以外的字符,即:
    JSESSIONID:29rshpmaj
    目前使用了这样一个正则 [^{}'] 能匹配出除了这三个特殊字符以外的内容,但是匹配数量太多了,我想有没有一条表达式只出一个结果,内容为 JSESSIONID:29rshpmaj
    14 replies    2019-11-16 18:01:39 +08:00
    iNaru
        1
    iNaru  
       Nov 16, 2019
    (?<={)[^{]+(?=})
    zhuzhuaini
        2
    zhuzhuaini  
    OP
       Nov 16, 2019
    @iNaru 不对哦 这样的匹配结果是:'JSESSIONID': '29rshpmaj' 还有单引号哦
    widewing
        3
    widewing  
       Nov 16, 2019 via Android
    你是不是对正则有什么误解啊。。
    jdhao
        4
    jdhao  
       Nov 16, 2019 via Android
    使用 match group 就可以了
    iNaru
        5
    iNaru  
       Nov 16, 2019
    @zhuzhuaini 没办法的,只能分组。(?<={')([^']+)'(:)\s'([^']+)(?='})
    zhuzhuaini
        6
    zhuzhuaini  
    OP
       Nov 16, 2019
    @iNaru 好吧 我用的 python 有这么个字符串想处理,如果不通过正则的话 有什么被的方案吗?谢谢谢谢
    sixway
        7
    sixway  
       Nov 16, 2019
    In [1]: import re

    In [2]: str = "{'JSESSIONID': '29rshpmaj'}"

    In [3]: print(re.sub(r"[?{}']", "", str))
    JSESSIONID: 29rshpmaj
    sixway
        8
    sixway  
       Nov 16, 2019   1
    In [4]: print(re.sub(r"[?{} ']", "", str))
    JSESSIONID:29rshpmaj
    zhuzhuaini
        10
    zhuzhuaini  
    OP
       Nov 16, 2019
    @sixway 感谢 这很完美!
    zhuzhuaini
        11
    zhuzhuaini  
    OP
       Nov 16, 2019
    @pompeii 谢谢 这个手册有空恶补一下
    sixway
        12
    sixway  
       Nov 16, 2019
    @zhuzhuaini #10 不能匹配内容的时候,可以考虑替换内容以外的为空。思维不要那么死板
    ipwx
        13
    ipwx  
       Nov 16, 2019 via Android
    匹配出 group 以后直接丢给 str format 不就行了?
    ipwx
        14
    ipwx  
       Nov 16, 2019 via Android
    '{}:{}'.format(*re.match(...).groups())
    About     Help     Advertise     Blog     API     FAQ     Solana     2937 Online   Highest 6679       Select Language
    创意工作者们的社区
    World is powered by solitude
    VERSION: 3.9.8.5 40ms UTC 06:02 PVG 14:02 LAX 23:02 JFK 02:02
    Do have faith in what you're doing.
    ubao msn snddm index pchome yahoo rakuten mypaper meadowduck bidyahoo youbao zxmzxm asda bnvcg cvbfg dfscv mmhjk xxddc yybgb zznbn ccubao uaitu acv GXCV ET GDG YH FG BCVB FJFH CBRE CBC GDG ET54 WRWR RWER WREW WRWER RWER SDG EW SF DSFSF fbbs ubao fhd dfg ewr dg df ewwr ewwr et ruyut utut dfg fgd gdfgt etg dfgt dfgd ert4 gd fgg wr 235 wer3 we vsdf sdf gdf ert xcv sdf rwer hfd dfg cvb rwf afb dfh jgh bmn lgh rty gfds cxv xcv xcs vdas fdf fgd cv sdf tert sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf sdf shasha9178 shasha9178 shasha9178 shasha9178 shasha9178 liflif2 liflif2 liflif2 liflif2 liflif2 liblib3 liblib3 liblib3 liblib3 liblib3 zhazha444 zhazha444 zhazha444 zhazha444 zhazha444 dende5 dende denden denden2 denden21 fenfen9 fenf619 fen619 fenfe9 fe619 sdf sdf sdf sdf sdf zhazh90 zhazh0 zhaa50 zha90 zh590 zho zhoz zhozh zhozho zhozho2 lislis lls95 lili95 lils5 liss9 sdf0ty987 sdft876 sdft9876 sdf09876 sd0t9876 sdf0ty98 sdf0976 sdf0ty986 sdf0ty96 sdf0t76 sdf0876 df0ty98 sf0t876 sd0ty76 sdy76 sdf76 sdf0t76 sdf0ty9 sdf0ty98 sdf0ty987 sdf0ty98 sdf6676 sdf876 sd876 sd876 sdf6 sdf6 sdf9876 sdf0t sdf06 sdf0ty9776 sdf0ty9776 sdf0ty76 sdf8876 sdf0t sd6 sdf06 s688876 sd688 sdf86