封装

class Player:
    def __init__(self, name, hp):
        # 属性
        self.__name = name  # 私有
        self.hp = hp
    # 方法
    def print_role(self):
        print('%s: %d' % (self.__name, self.hp))
    def update_name(self, new_name):
        self.__name = new_name
user1 = Player('tom', 100)
user1.print_role()
class Monster:
    pass  # 不要报错
# 输出
tom: 100

继承/多态

class Monster:
    def __init__(self, hp=100):
        self.hp = hp
    def run(self):
        print('run')
    def who_am_i(self):
        print('fu lei')
class Animals(Monster):
    def __init__(self, hp=11):
        super().__init__(hp)
class Boss(Monster):
    def __init__(self, hp=1000):
        super().__init__(hp)
    def who_am_i(self):
        print('boss')
a = Animals()
print(a.hp)
a2 = Boss()
a2.who_am_i()
# 输出
11
boss

根类

• object