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Re: make elements of a list twice or more.

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  Re: make elements of a list twice or more. liuerfire Wang <liuerfire@gmail.com> - 2013-08-07 16:56 +0800

#52139 — Re: make elements of a list twice or more.

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I got it!
It can do like [i for i in x for y in range(2)]


On Wed, Aug 7, 2013 at 4:50 PM, liuerfire Wang <liuerfire@gmail.com> wrote:

> Sorry for the title which didn't make clear.
>
> Here is a list x = [b, a, c] (a, b, c are elements of x. Each of them are
> different type).  Now I wanna generate a new list as [b, b, a, a, c, c].
>
> I know we can do like that:
>
> tmp = []
> for i in x:
>     tmp.append(i)
>     tmp.append(i)
>
> However, I wander is there a more beautiful way to do it, like [i for i in
> x]?
>
> Thanks.
>
>
> --
> Best regards.
> /**********************************
> google+: +liuerfire <http://gplus.to/onepiece> twitter: @liuerfire<https://twitter.com/#!/liuerfire>
> 蛋疼不蛋疼的都可以试着点一下~^_^~ <http://db.tt/YGEdRM0>
> ***********************************/
>
>


-- 
Best regards.
/**********************************
google+: +liuerfire <http://gplus.to/onepiece> twitter:
@liuerfire<https://twitter.com/#!/liuerfire>
蛋疼不蛋疼的都可以试着点一下~^_^~ <http://db.tt/YGEdRM0>
***********************************/

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