python中几个get

class (object):
    def __init__(self, x):
        self.x = x

    def __get__(self, instance, owner):
        print('__get__: instance:{} owner:{}'.format(instance, owner))
        
        #     return self
        # else:
        #     return instance
        super(Dept, self).__get__(instance, owner)

    def __getattr__(self, item):  #
        print('__getattr__: {}'.format(item))
        super(Dept, self).__getattr__(item)

    def __getitem__(self, item):  # “_ getitem_”只适用于所有的“[]”运算符；
        print('__getitem__: {}'.format(item))
        super(Dept, self).__getitem__(item)

    def __getattribute__(self, item):  # “_ getattribute_”只适用于所有的“.”运算符；
        print('__getattribute__: {}'.format(item))
        super(Dept, self).__getattribute__(item)