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compile()


On 3/28/07, Dreamer <dreamerx2004在gmail.com> wrote:
>
>  ´ó¼ÒºÃ£¬
>
>     ¼ÙÉèÎÒÓÐÒ»¸ö×Ö·û´® objStr = 'context.UserManager
> '£¬ÎÒ¸ÃÔõô×ö²ÅÄÜͨ¹ýÕâ¸ö×Ö·û´®·ÃÎʵ½UserManagerÄØ£¿
>
> лл
>
> _______________________________________________
> python-chinese
> Post: send python-chinese在lists.python.cn
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-- 
×¢ÒâÉíÌ壬ÉíÌåÊǸïÃüµÄ±¾Ç®£¡£¡
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UserManager = eval(objStr)()

 

发件人: python-chinese-bounces at lists.python.cn
[mailto:python-chinese-bounces at lists.python.cn] 代表 Dreamer
发送时间: 2007年3月28日 16:15
收件人: python-chinese at lists.python.cn
主题: [python-chinese] 怎样通过字符串访问对象？

 

大家好，

 

    假设我有一个字符串 objStr = 'context.UserManager'，我该怎么做才能通过这
个字符串访问到UserManager呢？

 

谢谢

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ÔÚ07-3-29£¬haoyu <haoyu在csdn.net> дµÀ£º
>
>  UserManager = eval(objStr)()
>
>
>
> *·¢¼þÈË:* python-chinese-bounces在lists.python.cn [mailto:
> python-chinese-bounces在lists.python.cn] *´ú±í *Dreamer
> *·¢ËÍʱ¼ä:* 2007Äê3ÔÂ28ÈÕ 16:15
> *ÊÕ¼þÈË:* python-chinese在lists.python.cn
> *Ö÷Ìâ:* [python-chinese] ÔõÑùͨ¹ý×Ö·û´®·ÃÎʶÔÏó£¿
>
>
>
> ´ó¼ÒºÃ£¬
>
>
>
>     ¼ÙÉèÎÒÓÐÒ»¸ö×Ö·û´® objStr = 'context.UserManager'£¬ÎÒ¸ÃÔõô×ö²ÅÄÜͨ¹ýÕâ¸ö×Ö·û´®·ÃÎʵ½UserManager
> ÄØ£¿
>
>
>
> лл
>
> _______________________________________________
> 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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getattr(globals()['context'], 'UserManager')

>>> help(getattr)
Help on built-in function getattr in module __builtin__:

getattr(...)
    getattr(object, name[, default]) -> value

    Get a named attribute from an object; getattr(x, 'y') is equivalent to x.y.
    When a default argument is given, it is returned when the attribute doesn't
    exist; without it, an exception is raised in that case.

>>> help(globals)
Help on built-in function globals in module __builtin__:

globals(...)
    globals() -> dictionary

    Return the dictionary containing the current scope's global variables.

>>> help(locals)
Help on built-in function locals in module __builtin__:

locals(...)
    locals() -> dictionary

    Update and return a dictionary containing the current scope's
local variables.

>>>



在 07-3-28，Dreamer<dreamerx2004 at gmail.com> 写道：
>
>
> 大家好，
>
>     假设我有一个字符串 objStr =
> 'context.UserManager'，我该怎么做才能通过这个字符串访问到UserManager呢？
>
> 谢谢
> _______________________________________________
> python-chinese
> Post: send python-chinese at lists.python.cn
> Subscribe: send subscribe to
> python-chinese-request at lists.python.cn
> Unsubscribe: send unsubscribe to
> python-chinese-request at lists.python.cn
> Detail Info:
> http://python.cn/mailman/listinfo/python-chinese
>