py06_07：类的继承

class Animal:
    def __init__(self,name):
        self.name = name

    def eat(self):
        print('吃')

    def drink(self):
        print('喝')

    def run(self):
        print('跑')

    def sleep(self):
        print('睡')


class Dog(Animal):
    def balk(self):
        print('汪汪叫')


jinmao = Dog()  # Dog类继承了Animal，所以Dog的对象也会有Animal的属性和方法

 方法重写