python 大神，下面代码看不懂，求大神指导 - V2EX

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This topic created in 4296 days ago, the information mentioned may be changed or developed.

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 replies • 2015-02-03 10:29:14 +08:00

Shared

Feb 2, 2015

1

1

查 itertools 的 groupby 用法

letv

Feb 2, 2015

2

中文变量名。。。

snachx

Feb 3, 2015

3

@letv 中文只是lz的叙述过程。。。

zerh925

Feb 3, 2015

4

学好语文再来提问

xwsoul

Feb 3, 2015

1

5

@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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