#测试property,x.setter,x.deleter

class Test1:

    def __init__(self):

        self.__private = "alex"

    @property

    def private(self):

        return self.__private

    @private.setter

    def private(self,value):

        self.__private = value

    @private.deleter

    def private(self):

        del self.__private

t1 = Test1()

print(t1.private)

t1.private = "alex2"

print(t1.private)

del t1.private

print(t1.private)