"""创建一个基础类 Animal，实现通用的属性和方法。
创建派生类 Dog 和 Cat，继承自 Animal 并增加各自的独特行为。"""
class Animal :
    def __init__(self,name,age):
        self.name=name
        self.age = age
    def call(self):
        print(f"{self.name}")

    def info(self):
        return f"{self.name} is {self.age} years old."


class Dog(Animal):
    def call(self):
        super().call()
        print("汪汪叫")

class Cat(Animal):
    def call(self):
        super().call()
        print("喵喵叫")
class Bird(Animal):
    def call(self):
        super().call()
        print("啾啾叫")
dog=Dog("xiaogou",5)
cat=Cat("xiaomao",3)
bird=Bird("xiaoniao",5)
dog.call()
cat.call()
bird.call()

print(dog.info())
print(cat.info())
print(bird.info())