sort貌似比hash慢...

2009/11/6 Ruixian Zhu <[email protected]>

> sort file.txt| uniq > file1.txt
>
>
> 2009/11/6 Michael Zeng <[email protected]>
>
>> 是啊,最快的就是 sort -u  了
>>
>>
>>
>>
>> 2009/11/6 Michael Zeng <[email protected]>
>>
>>  use List::MoreUtils qw/ uniq / ;
>>>
>>> my @data = <F> ;
>>>
>>> my @unique = uniq  @data;
>>>
>>>
>>>
>>>
>>>
>>>  2009/11/6 linhy <[email protected]>
>>>
>>>> 将文件中重复的行,替换,只保留一行.我的思路是,对文件逐行与其它行分析,然后写入到另一个文件.但感觉这样效率不高。请问各味大虾有没有好一点的思
>>>>
>>>> 路或是方法?谢谢先
>>>>
>>>> --
>>>>            Yours Sincerely
>>>>                    Zeng Hong
>>>>
>>>>
>>>>
>
> >
>

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