抽象类

#抽象类
import abc
class Animal(metaclass=abc.ABCMeta):   
    @abc.abstractmethod   #强制子类
    def eat(self):
        pass

    @abc.abstractmethod
    def run(self):
        pass

class Peeple(Animal):
    def eat(self):
        print('peeple is eating')

    def run(self):
        print('peeple is runing')

class Dag(Animal):
    def eat(self):
        print('dag is eating')

    def run(self):
        print('dag is runing')

peo1=Peeple()
dag1=Dag()

peo1.eat()
dag1.eat()