Python 的多态笔记
Python的多态实际是通过instance 实现的
class Person:
def __init__(self, name,age):
self.name = name
self.age = age
def feed_pet(self,pet):
#isinastance(obj,类)-->判断obj,是不是这个类的对象,或者判断obj是不是该类的子类的对象
if isinstance(pet, Pet):
self.pet = pet
print('可以养')
print(f'{self.name}喜欢喂养{pet.role},昵称是{pet.nickname}')
else:
print('不是宠物类型')
class Pet:
role='Pet'
def __init__(self,nickname,age):
self.nickname = nickname
self.age = age
def show(self):
print(f'{self.nickname} 今年{self.age}岁了')
class Cat(Pet):
role='Cat'
def catch_Mouse(self):
print('抓老鼠')
class Dog(Pet):
role='Dog'
def Watch_House(self):
print('看家高手。。。。')
class Tiger:
def __init__(self,name):
self.name = name
self.age = 1
def eat(self):
print('太可怕了,能吃人!!')
#创建对象
cat=Cat('花花',2)
dog=Dog('大黄',3)
p1=Person('lucy',23)
tiger1=Tiger('大老虎')
p1.feed_pet(cat)
p2=Person('pengpeng',24)
p2.feed_pet(tiger1)
p2.feed_pet(dog)
原文地址:https://blog.csdn.net/Katherine1029/article/details/143838667
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