# 多态-
class Dog(object):
    def __init__(self,name):
        self.name=name
    
    def game(self):
        print("开心地玩帅")


class XiaoTianDog(Dog):
    def game(self):
        print("play in the sky")



class Person(object):
    
    def __init__(self,name):
        self.name=name
    
    def play_with_dog(self,dog):
        print(f"{self.name} 和 {dog.name} ")
        
        dog.game()
    

a=Dog("土狗")

xiaoming=Person("小明")
xiaoming.play_with_dog(a)

b=XiaoTianDog("神奇狗狗会飞翔")
xiaoming.play_with_dog(b)