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darasion

key path 这些东西该怎样用？

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  •   darasion · Dec 30, 2010 · 3404 views
    This topic created in 5642 days ago, the information mentioned may be changed or developed.
    如题。

    文档中提到少：
    http://code.google.com/appengine/docs/python/datastore/keysandentitygroups.html#Entity_Groups_Ancestors_and_Paths


    不知道这个具体怎么用，在什么情况下用呢？
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