很弱的问题:
输入
type({}), 
屏幕输出

但是输入
type({})==""
屏幕却输出 False
为什么会这样那?
我用的是activepython2.3+win2k

lilin
lin.li at samsung.com
Python is designed to save time

 这是python在告诉你这是一个“字典”对象，
而"" 则是一个字符串，他们当然不一样了。

-----原始邮件-----
发件人: Lilin [mailto:lin.li at samsung.com]
发送时间: 2004年2月25日 14:42
收件人: python-chinese at lists.python.cn
主题: [python-chinese] about type()


很弱的问题:
输入
type({}), 
屏幕输出

但是输入
type({})==""
屏幕却输出 False
为什么会这样那?
我用的是activepython2.3+win2k

lilin
lin.li at samsung.com
Python is designed to save time

值不同，当然不等啦
type({})，type对象
""  字符串



>From: Lilin <lin.li at samsung.com>
>To: python-chinese at lists.python.cn
>Subject: [python-chinese] about type()
>Date: Wed, 25 Feb 2004 14:42:03 +0800
>
>很弱的问题:
>输入
>type({}),
>屏幕输出
>
>但是输入
>type({})==""
>屏幕却输出 False
>为什么会这样那?
>我用的是activepython2.3+win2k
>
>lilin
>lin.li at samsung.com
>Python is designed to save time
>_______________________________________________
>python-chinese mailing list
>python-chinese at lists.python.cn
>http://python.cn/mailman/listinfo/python-chinese

_________________________________________________________________
免费下载 MSN Explorer:   http://explorer.msn.com/lccn/  

>>> type(1) == int
True
>>> type({}) == dict
True
>>> import types
>>> type({}) == types.DictType
True
>>> type({}) is types.DictType
True

-----Original Message-----
From: python-chinese-bounces at lists.python.cn
[mailto:python-chinese-bounces at lists.python.cn] On Behalf Of Lilin
Sent: Wednesday, February 25, 2004 2:42 PM
To: python-chinese at lists.python.cn
Subject: [python-chinese] about type()

很弱的问题:
输入
type({}), 
屏幕输出

但是输入
type({})==""
屏幕却输出 False
为什么会这样那?
我用的是activepython2.3+win2k

lilin
lin.li at samsung.com
Python is designed to save time

str(type({}))==""        True
type({})==""             False

IDLE输出的是str(_);


----- Original Message ----- 
From: "Lilin" <lin.li at samsung.com>
To: <python-chinese at lists.python.cn>
Sent: Wednesday, February 25, 2004 2:42 PM
Subject: [python-chinese] about type()


> 很弱的问题:
> 输入
> type({}), 
> 屏幕输出
> 
> 但是输入
> type({})==""
> 屏幕却输出 False
> 为什么会这样那?
> 我用的是activepython2.3+win2k
> 
> lilin
> lin.li at samsung.com
> Python is designed to save time


--------------------------------------------------------------------------------


> _______________________________________________
> python-chinese mailing list
> python-chinese at lists.python.cn
> http://python.cn/mailman/listinfo/python-chinese
> 

>>>type({})


>>>type( type({}) )


>>>type("")


原来type()返回值是type类型的，不是字符串型的。


 
----- Original Message ----- 
From: "Lilin" <lin.li at samsung.com>
To: <python-chinese at lists.python.cn>
Sent: Wednesday, February 25, 2004 2:42 PM
Subject: [python-chinese] about type()


> 很弱的问题:
> 输入
> type({}), 
> 屏幕输出
> 
> 但是输入
> type({})==""
> 屏幕却输出 False
> 为什么会这样那?
> 我用的是activepython2.3+win2k
> 
> lilin
> lin.li at samsung.com
> Python is designed to save time


--------------------------------------------------------------------------------


> _______________________________________________
> python-chinese mailing list
> python-chinese at lists.python.cn
> http://python.cn/mailman/listinfo/python-chinese
>