小妹打了几行,很奇怪为什么w/q的结果是4L而不是4?
>>> q=2**1002
>>> w=2**1004
>>> w/q
4L

大哥告诉你,参与运算的有一个是L,结果就是L.

2006/12/28, linda. s <samrobertsmith在gmail.com>:
>
> 小妹打了几行,很奇怪为什么w/q的结果是4L而不是4?
> >>> q=2**1002
> >>> w=2**1004
> >>> w/q
> 4L
> _______________________________________________
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L是什么意思?对不起,基础很薄弱.

On 12/27/06, Hope <lanyig在gmail.com> wrote:
> 大哥告诉你,参与运算的有一个是L,结果就是L.
>
> 2006/12/28, linda. s <samrobertsmith在gmail.com>:
> >
> > 小妹打了几行,很奇怪为什么w/q的结果是4L而不是4?
> > >>> q=2**1002
> > >>> w=2**1004
> > >>> w/q
> > 4L
> > _______________________________________________
> > python-chinese
> > Post: send python-chinese在lists.python.cn
> > Subscribe: send subscribe to
> python-chinese-request在lists.python.cn
> > Unsubscribe: send unsubscribe to
> python-chinese-request在lists.python.cn
> > Detail Info:
> http://python.cn/mailman/listinfo/python-chinese
>
>
> _______________________________________________
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L表示Long

Python的int和long int可以自动转换。不过这种自动是单向的，也就是只能从int到Long

On 12/27/06, linda. s <samrobertsmith在gmail.com> wrote:
> L是什么意思?对不起,基础很薄弱.
>
> On 12/27/06, Hope <lanyig在gmail.com> wrote:
> > 大哥告诉你,参与运算的有一个是L,结果就是L.
> >
> > 2006/12/28, linda. s <samrobertsmith在gmail.com>:
> > >
> > > 小妹打了几行,很奇怪为什么w/q的结果是4L而不是4?
> > > >>> q=2**1002
> > > >>> w=2**1004
> > > >>> w/q
> > > 4L
> > > _______________________________________________
> > > python-chinese
> > > Post: send python-chinese在lists.python.cn
> > > Subscribe: send subscribe to
> > python-chinese-request在lists.python.cn
> > > Unsubscribe: send unsubscribe to
> > python-chinese-request在lists.python.cn
> > > Detail Info:
> > http://python.cn/mailman/listinfo/python-chinese
> >
> >
> > _______________________________________________
> > python-chinese
> > Post: send python-chinese在lists.python.cn
> > Subscribe: send subscribe to
> > python-chinese-request在lists.python.cn
> > Unsubscribe: send unsubscribe to
> > python-chinese-request在lists.python.cn
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> > http://python.cn/mailman/listinfo/python-chinese
> >
> _______________________________________________
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> Post: send python-chinese在lists.python.cn
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On 12/28/06, linda. s <samrobertsmith在gmail.com> wrote:
> L是什么意思?对不起,基础很薄弱.
>
long integer

-- 
I like python!
UliPad <>: http://wiki.woodpecker.org.cn/moin/UliPad
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这个基础的基础就不是mail list的用处了,你得自己去看书了.

2006/12/28, linda. s <samrobertsmith在gmail.com>:
>
> L是什么意思?对不起,基础很薄弱.
>
> On 12/27/06, Hope <lanyig在gmail.com> wrote:
> > 大哥告诉你,参与运算的有一个是L,结果就是L.
> >
> > 2006/12/28, linda. s <samrobertsmith在gmail.com>:
> > >
> > > 小妹打了几行,很奇怪为什么w/q的结果是4L而不是4?
> > > >>> q=2**1002
> > > >>> w=2**1004
> > > >>> w/q
> > > 4L
> > > _______________________________________________
> > > python-chinese
> > > Post: send python-chinese在lists.python.cn
> > > Subscribe: send subscribe to
> > python-chinese-request在lists.python.cn
> > > Unsubscribe: send unsubscribe to
> > python-chinese-request在lists.python.cn
> > > Detail Info:
> > http://python.cn/mailman/listinfo/python-chinese
> >
> >
> > _______________________________________________
> > python-chinese
> > Post: send python-chinese在lists.python.cn
> > Subscribe: send subscribe to
> > python-chinese-request在lists.python.cn
> > Unsubscribe: send unsubscribe to
> > python-chinese-request在lists.python.cn
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> > http://python.cn/mailman/listinfo/python-chinese
> >
> _______________________________________________
> python-chinese
> Post: send python-chinese在lists.python.cn
> Subscribe: send subscribe to python-chinese-request在lists.python.cn
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Integer literals with an "L" or "l" suffix yield long integers ("L" is preferred because "1l" looks too much like eleven!). 

这个在Python Library Reference的3. Built-in Types 的3.4 Numeric Types -- int, float, long, complex 里面有详细的讲解和说明。


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--------------------------------------------------
  ----- Original Message ----- 
  From: Hope 
  To: python-chinese在lists.python.cn 
  Sent: Thursday, December 28, 2006 9:42 AM
  Subject: Re: [python-chinese] 结果是4L而不是4?


  这个基础的基础就不是mail list的用处了,你得自己去看书了.


  2006/12/28, linda. s <samrobertsmith在gmail.com>: 
    L是什么意思?对不起,基础很薄弱.

    On 12/27/06, Hope <lanyig在gmail.com> wrote: 
    > 大哥告诉你,参与运算的有一个是L,结果就是L.
    >
    > 2006/12/28, linda. s <samrobertsmith在gmail.com>:
    > >
    > > 小妹打了几行,很奇怪为什么w/q的结果是4L而不是4?
    > > >>> q=2**1002 
    > > >>> w=2**1004
    > > >>> w/q
    > > 4L
    > > _______________________________________________
    > > python-chinese
    > > Post: send python-chinese在lists.python.cn
    > > Subscribe: send subscribe to
    > python-chinese-request在lists.python.cn
    > > Unsubscribe: send unsubscribe to 
    > python-chinese-request在lists.python.cn
    > > Detail Info:
    > http://python.cn/mailman/listinfo/python-chinese 
    >
    >
    > _______________________________________________
    > python-chinese
    > Post: send python-chinese在lists.python.cn
    > Subscribe: send subscribe to 
    > python-chinese-request在lists.python.cn
    > Unsubscribe: send unsubscribe to
    > python-chinese-request在lists.python.cn 
    > Detail Info:
    > http://python.cn/mailman/listinfo/python-chinese
    >
    _______________________________________________
    python-chinese 
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    Subscribe: send subscribe to python-chinese-request在lists.python.cn 
    Unsubscribe: send unsubscribe to  python-chinese-request在lists.python.cn
    Detail Info: http://python.cn/mailman/listinfo/python-chinese 




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为啥不先去google一下或查查手册？

>小妹打了几行,很奇怪为什么w/q的结果是4L而不是4?
>> > > q=2**1002
>> > > w=2**1004
>> > > w/q
>4L