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第180页，倒数第三行。英文原文：If you overload == and !=, you must also override the Equals() and GetHashCode() me
官网解释：object.__getattr__(self, name)Called when an attribute lookup has not found the attribute
#！/usr/bin/python class ozd(object): def __repr__(self):
type的用法：1、普通的type用法：检查类型class my(object): def hello(self, nam
