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为什么Python的“私有”方法实际上不是私有的？
Python使我们能够在类中创建“私有”方法和变量，方法是在名称前加上双下划线，例如：__myPrivateMethod()。那么，如何解释这一点 >>> class MyClass: ... def myPublicMethod(self): ... print 'public method' ... def __myPrivateMethod(self): ... print 'this is private!!' ... >>> obj = MyClass() >>> obj.myPublicMethod() public method >>> obj.__myPrivateMethod() Traceback (most recent call last): File "", line 1, in AttributeError: MyClass instance has no attribute '__myPrivateMethod' >>> dir(obj) ['_MyClass__myPrivateMethod', …