python 大神,下面代码看不懂,求大神指导 - V2EX
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hitluobin
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python 大神,下面代码看不懂,求大神指导

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  •   hitluobin 2015-02-02 21:03:47 +08:00 4008 次点击
    这是一个创建于 3905 天前的主题,其中的信息可能已经有所发展或是发生改变。

    import itertools

    原tweet = "I luv my <3 iphone & youre awsm apple. DisplayIsAwesome, sooo happppppy :) http://www.apple.com"
    经过tweet = ''.join(''.join(s)[:2] for _, s in itertools.groupby(tweet))
    结果tweet = "I luv my <3 iphone & youre awsm apple. DisplayIsAwesome, soo happy :) http://ww.apple.com"

    求指教实现过程是怎么样的?

    5 条回复    2015-02-03 10:29:14 +08:00
    Shared
        1
    Shared  
       2015-02-02 21:13:05 +08:00   1
    查 itertools 的 groupby 用法
    letv
        2
    letv  
       2015-02-02 21:15:39 +08:00
    中文变量名。。。
    snachx
        3
    snachx  
       201502-03 08:48:24 +08:00
    @letv 中文只是lz的叙述过程。。。
    zerh925
        4
    zerh925  
       2015-02-03 09:06:53 +08:00
    学好语文再来提问
    xwsoul
        5
    xwsoul  
       2015-02-03 10:29:14 +08:00   1
    @zerh925 提问者不是问的很清楚了么...
    @hitluobin 按字符分组(itertools.groupby, 空格也算), 每组字符最多取两个 [:2] 合并为字符串, 将各组字符串合并为一个字符串
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