class Dog():

    def __init__(self,name):

        self.name = name

    def game(self):

        print('%s 蹦蹦跳跳的玩耍...' %self.name)

class Xiaotianquan(Dog):

# 父类方法不能满足子类的需求的时候，重写game方法

    def game(self):

        print('%s 飞到天上玩...' %self.name)

class Person(object):

    def __init__(self,name):

        self.name = name

    def game_with_dog(self,dog):

        print('%s 和 %s 快乐的玩耍' %(self.name,dog.name))

#  1).创建一个狗对象

wangcai = Dog('旺财')

# wangcai = Xiaotianquan('飞天神狗')

#  2).创建一个小明对象(小明是一个人)

xiaoming = Person('小明')

#  3).让小明和狗玩

xiaoming.game_with_dog(wangcai)