##language:zh
#pragma section-numbers off
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<<TableOfContents>>
## 默许导航,请保留
<<Include(ZPyUGnav)>>


= 输出成 1,233,232 形式 =

{{{
ljian <ljian52bb@gmail.com>
reply-to	python-cn@googlegroups.com
to	python-cn`CPyUG`华蟒用户组 <python-cn@googlegroups.com>
date	Tue, Jan 13, 2009 at 16:05
subject	[CPyUG:76794] python怎么输出1,233,232这种形式？
}}}
有现成库么？
##startInc
== locale ==
国外同志们有遇到同样的问题。看这里：
 * http://bytes.com/groups/python/454763-number-format-function

其中有个回帖是这样的。

    This is a little faster:
{{{
    def number_format(num, places=0):
    """Format a number according to locality and given places"""
    locale.setlocale(locale.LC_ALL, "")
    return locale.format("%.*f", (places, num), True)

    I tested this ok with my test
}}}
=== 再一例  ===
{{{
eric <pony.ch@gmail.com>
reply-to	python-cn@googlegroups.com
to	python-cn`CPyUG`华蟒用户组 <python-cn@googlegroups.com>
date	Tue, Jan 13, 2009 at 16:53
subject	[CPyUG:76807] Re: python怎么输出1,233,232这种形式？
}}}

http://www.jaharmi.com/2008/05/26/format_numbers_with_the_python_locale_module
{{{
>>> import locale
>>> a = {'size': 123456789, 'unit': 'bytes'}
>>> print(locale.format("%(size).2f", a, 1))
123456789.00
>>> locale.setlocale(locale.LC_ALL, '') # Set the locale for your system
'en_US.UTF-8'
>>> print(locale.format("%(size).2f", a, 1))
123,456,789.00
}}}

== DIY ==
{{{
smallfish <smallfish@live.cn>
reply-to	python-cn@googlegroups.com
to	python-cn@googlegroups.com
date	Tue, Jan 13, 2009 at 16:53
subject	[CPyUG:76806] Re: python怎么输出1,233,232这种形式？
}}}

我试了一个土方法：
{{{
>>> s = "1234567890"
>>> s = s[::-1]
>>> a = [s[i:i+3] for i in range(0,len(s),3)]
>>> print (",".join(a))[::-1]
}}}


##endInc

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创建 by -- ZoomQuiet [<<DateTime(2009-01-13T09:10:43Z)>>]