python面向对象不使用继承和使用继承比较

 

 

 

不使用继承开发

class Animal:
    def eat(self):
        print("吃")

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

    def run(self):
        print("跑")

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

class Dog:
    def eat(self):
        print("吃")

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

    def run(self):
        print("跑")

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

    def bark(self):
        print("汪汪叫")

wangcai=Dog()
wangcai.eat()
wangcai.drink()
wangcai.run()
wangcai.sleep()
wangcai.bark()

使用继承开发

class Animal:
    def eat(self):
        print("吃---")

    def drink(self):
        print("喝---")

    def run(self):
        print("跑---")

    def sleep(self):
        print("睡---")

class Dog(Animal):

    def bark(self):
        print("汪汪叫")

wangcai=Dog()
wangcai.eat()
wangcai.drink()
wangcai.run()
wangcai.sleep()
wangcai.bark()