python基础-接口类多继承

from abc import abstractmethod,ABCMeta
class Swim_Animal(metaclass=ABCMeta):
@abstractmethod
def swim(self):pass

class Walk_Animal(metaclass=ABCMeta):
@abstractmethod
def walk(self):pass

class Fly_Animal(metaclass=ABCMeta):
@abstractmethod
def fly(self):pass

class Tiger(Walk_Animal,Swim_Animal):
def walk(self):
pass
def swim(self):
pass
class OldYing(Fly_Animal,Walk_Animal):pass
class Swan(Swim_Animal,Walk_Animal,Fly_Animal):pass

接口类 刚好满足接口隔离原则 面向对象开发的思想 规范