"""
实例
汤宝宝混穿到了泰拉世界，并成为了泰拉联邦的唯一统治者。人类只有一个帝皇！
"""


# 帝皇类
class Emperor(object):
    __instance = None
    __name = ""

    def __new__(cls, name: str, announce: str):
        if not cls.__instance:
            cls.__instance = super(Emperor, cls).__new__(cls)
            cls.__instance.__name = name
        return cls.__instance

    def __init__(self, name: str, announce: str) -> None:
        print(announce)

    @property
    def name(self) -> str:
        return self.__name


def main() -> None:
    print("========= 单例模式 =========")

    # 创建帝皇
    emperor1 = Emperor("汤宝宝", "泰拉联邦的帝皇诞生了！")
    print(f"帝皇的名字是：{emperor1.name}！")
    emperor2 = Emperor("王二狗", "泰拉联邦的帝皇又一次诞生了！")
    print(f"帝皇的名字是：{emperor2.name}！")

    if emperor1 is emperor2:
        print(f"泰拉只有一个帝皇：{emperor1.name}！\n")

    print("======= 单例模式结束 =======")


if __name__ == "__main__":
    main()