属性及封装

# 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__)