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kenneth
V2EX  ›  Python

请教一个字符串分割的问题

  •  
  •   kenneth · Nov 28, 2014 · 2750 views
    This topic created in 4334 days ago, the information mentioned may be changed or developed.
    例如
    url='http://www.test.com/a=1&b=2&c=3'
    print url.split('&')[0]

    我希望得到
    url='http://www.test.com/a=1&b=2

    也就是按最后一个&分
    要怎么写?
    3 replies  •  2014-12-02 02:35:21 +08:00
    whywhywhy
        1
    whywhywhy  
       Nov 29, 2014
    url='http://www.test.com/a=1&b=2&c=3'
    print url.split('&c=')[0]
    irainy
        2
    irainy  
       Nov 29, 2014
    '&'.join(url.split('&')[:-1])
    KentY
        3
    KentY  
       Dec 2, 2014 via iPhone
    手机cp/paste不方便,你就re.sub(u'&[^&]*$','',url)就好了吧
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