这个很明显是feature :-) 

> -----Original Message-----
> From: python-chinese-bounces at lists.python.cn 
> [mailto:python-chinese-bounces at lists.python.cn] On Behalf Of albertlee
> Sent: Wednesday, April 13, 2005 10:23 PM
> To: python-chinese at lists.python.cn
> Subject: [python-chinese] Re: [金山毒霸识别此邮件为垃圾邮件]round 的问题
> 
> 俄，找到原因了，是浮点数的表示
> 
> 1.255 在内存中是 1.2549999999999999  
> 
> 不知道这个问题，算不算是个bug 

也不能说是feature吧，只能说是由于计算机硬件采用二进制表示数字，导致程序代码中的10进制数不能精确表达的局限性。

On 4/13/05, Xin LI <delphij at frontfree.net> wrote:
> 
> 这个很明显是feature :-)
> 
> > -----Original Message-----
> > From: python-chinese-bounces at lists.python.cn
> > [mailto:python-chinese-bounces at lists.python.cn] On Behalf Of albertlee
> > Sent: Wednesday, April 13, 2005 10:23 PM
> > To: python-chinese at lists.python.cn
> > Subject: [python-chinese] Re: [金山毒霸识别此邮件为垃圾邮件]round 的问题
> >
> > 俄，找到原因了，是浮点数的表示
> >
> > 1.255 在内存中是 1.2549999999999999
> >
> > 不知道这个问题，算不算是个bug
> 
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> 
> 


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