python如何使用神奇的方法为类设置属性'；s法

正如上面的代码所示，当我键入print Foo（）.think.different时，输出将是“think different”。但问题是我应该用魔法的方法得到这个，我该怎么做？谢谢。

在类中定义装饰器似乎是一种不必要的复杂方法：

    class Foo(object):
        def static_var():
            def decorator(func):
                setattr(func, "different", "think different")
                return func
            return decorator
        @static_var()
        def think(self):
            pass

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您可能想看看

\uuu getattr\uuuu（）

，它在调用未定义的属性时被调用。或者使用

\uuu getattribute\uuuu（）

，这是为所有属性调用的。。调用必需的属性时，使其返回方法。这是我想你需要的

class Foo(object):

    def think(self):
        pass

    setattr(think, "different", "think different")    



print(Foo().think.different) 

---

小心使用

\uuu getattribute\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu。因此，您可以设置一个指向类方法的属性。
class A(object):

    def __init__(self):
        pass

    def printer(self,input):
        print(input)

    def __getattr__(self,atr):
        if atr == 'methd':
            return self.printer