import arcgisscripting
gp = arcgisscripting.create()
gp.workspace = "c:\\workspace"
gp.Clip()

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zhangbaocai_cug
2007-07-10
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ÔÚ07-7-11£¬zhangbaocai_cug <zhangbaocai_cug在tom.com> дµÀ£º
>
>  import arcgisscripting
> gp = arcgisscripting.create()
> gp.workspace = "c:\\workspace"
> gp.Clip()
>
> ÔÚÉÏÃæµÄ´úÂëÖУ¬Ê¹ÓÃarcgisscripting Ä£¿éµÄcreate·½·¨£¬·µ»ØÒ»¸ögp¶ÔÏó£¬ÎÒÏëÖªµÀÕâÊÇÔõôʵÏÖµÄÄØ£¿
> ÓÃC/C++À©Õ¹µÄ»°ºÃÏñÖ»ÄÜʹÓà *Py_BuildValue*·µ»ØÊý¾ÝÀàÐÍ£¬¶øÇÒÎÒÔÚʹÓÃdir(gp)µÄʱºò¿´²»µ½workspaceÕâ¸öÊôÐÔºÍClip()Õâ¸ö·½·¨£¬ÇëÎÊÕâÊÇ
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>
>  ------------------------------
>  zhangbaocai_cug
> 2007-07-10
>
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Py C API 中可以动态构建一个 python 对象 (PyObject代表) 并返回。
看 Py C API 手册。

光 PyBuildValue() 是做不到的。


zhangbaocai_cug 写道:
> import arcgisscripting
> gp = arcgisscripting.create()
> gp.workspace = "c:\\workspace"
> gp.Clip()
> 在上面的代码中，使用arcgisscripting 模块的create方法，返回一个gp对象，
> 我想知道这是怎么实现的呢？
> 用C/C++扩展的话好像只能使用 *Py_BuildValue*返回数据类型，而且我在使用
> dir(gp)的时候看不到workspace这个属性和Clip()这个方法，请问这是 什么原因，
> 初学者，请各位大侠指教！
> ------------------------------------------------------------------------
> zhangbaocai_cug
> 2007-07-10
> ------------------------------------------------------------------------
>
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