我需要一个函数,能够把一组set或一组list"连接"起来;reduce几乎就是我要的,但:

1) set的"连接"运算是"set.union"或"&",list的连接运算是"list.extend"或"operator.add"
2) reduce不允许可迭代的那个参数为None
3) reduce不允许可迭代的那个参数长度为0,我希望长度为0时返回set( )或[ ]

能否不使用isinstance来完成这个工作呢?
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各位在北京的哥们，也冒个泡，偶们也来个聚会怎么样？

偶的msn: ltsky at vip.163.com
QQ: 2001018
手机: 13693669460

李桃
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On 3/3/06, taodev <taodev at gmail.com> wrote:
>
> 各位在北京的哥们，也冒个泡，偶们也来个聚会怎么样？
>
> 偶的msn: ltsky at vip.163.com
> QQ: 2001018
> 手机: 13693669460
>

已经聚过了.

--
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My Blog: http://www.donews.net/limodou
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自己顶一下,顺便更正一个错误:set的"连接"运算是 " | "

在06-3-3，ajax chelsea <ajaxchelsea at gmail.com> 写道：
>
> 我需要一个函数,能够把一组set或一组list"连接"起来;reduce几乎就是我要的,但:
>
> 1) set的"连接"运算是"set.union"或"&",list的连接运算是"list.extend"或"operator.add"
> 2) reduce不允许可迭代的那个参数为None
> 3) reduce不允许可迭代的那个参数长度为0,我希望长度为0时返回set( )或[ ]
>
> 能否不使用isinstance来完成这个工作呢?
>
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taodev 写道:
> 各位在北京的哥们，也冒个泡，偶们也来个聚会怎么样？
> 偶的msn: ltsky at vip.163.com ltsky at vip.163.com>
> QQ: 2001018
> 手机: 13693669460
> 李桃
> ------------------------------------------------------------------------
>
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好注意。