import abc
# 制定規則
class BaseObj(metaclass=abc.ABCMeta):
# 吃
@abc.abstractmethod
def eat(self):
pass
# 說
@abc.abstractmethod
def say(self):
pass
# 睡
@abc.abstractmethod
def sleep(self):
pass
# 定義人類
class People(BaseObj):
def eat(self):
print('人吃')
    def say(self):
print('人說')
    def sleep(self):
print
 
('人睡')

# 定義狗類
class Dog(BaseObj):
def eat(self):
print('狗吃')
    def say(self):
print('狗說')
    def sleep(self):
print('狗睡')

# 定義行為類
class Action:
def __init__(self,obj):
self.obj = obj
def eat(self):
self.obj.eat()
    def say(self):
self.obj.say()
    def sleep(self):
self.obj.sleep()

people = 
 
Action(Dog())
people.say()
people.eat()
people.sleep()