python 一个简单的多态小例子

题目描述

1、定义Animal类，至少包含一个属性和一个方法
2、定义Cat类和Dog类，使这两个类继承自Animal类
3、定义Person类，使人可以通过Animal喂食Cat类和Dog类的实例

源代码

class Animal(object):
    def __init__(self,name):
        self.name = name
    def eat(self):
        print(self.name + " eat")

class Dog(Animal):
    def __init__(self, name):
        super(Dog, self).__init__(name)

class Cat(Animal):
    def __init__(self, name):
        super(Cat, self).__init__(name)

class Person():
    def feedAnimal(self,animal):
        animal.eat()

cat = Cat("tom")
per = Person()
per.feedAnimal(cat)

转载于:https://www.cnblogs.com/tianyb/p/10838340.html