# class BMI: # def __init__(self,name,weight,high): # self.name=name # self.__weight=weight # self.__high=high # def fn(self): # s=self.__weight/(self.__high**2) # if s<18.5: # print("过轻") # elif s<23.9: # print("正常") # elif s<27: # print("过重") # elif s<32: # print("肥胖") # else: # print("非常肥胖") # @property # def Bmi(self): # return self.__weight/(self.__high**2) # # a=BMI("张敏聪",78,1.76) # print(a.Bmi) # class People: # name="123" # __num=2 # def __init__(self,name,age): # self.name=name # self.__age = age if type(age) is int else print("你输入的年龄类型有误") # @property # def age(self): # return self.__age # @age.setter # def age(self,value): # self.__age = value if type(value)is int else print("你输入的年龄类型有误") # @age.deleter # def age(self): # del self.__age # @classmethod # def fn(cls): # print(cls.__num) # @staticmethod # def func(): # print(666) # p1=People("zhang",21) # print(p1.age) # # print(p1._People__age) # p1.age=20 # print(p1.age) # print(p1.__dict__) # del p1.age # print(p1.__dict__) # People.fn() # People.func() class A: @classmethod def fn(cls): print(cls.name) class Game(A): name="lol" __players="两亿" def __init__(self,people,game): self.people=people self.__game=game @property def game(self): return self.__game @game.setter def game(self,value): self.__game=value @game.deleter def game(self): del self.__game @staticmethod def func(): print("无关函数") p=Game("五个","MOB") Game.fn() p.game="A" del p.game print(p.__dict__)