# 单例模式与抛出异常
class GamePlayer(object):
    instance = None

    def __new__(cls, *args, **kwargs):
        if cls.instance is None:
            cls.instance = super().__new__(cls)
        return cls.instance

    init_flag = False

    def __init__(self):

        if GamePlayer.init_flag:
            return
        print("对象初始化中...")
        GamePlayer.init_flag = True


try:
    player1 = GamePlayer()
    print(player1)
    player2 = GamePlayer()
    print(player2)
except Exception as result:
    print("%s 未知错误" % result)

很厉害的