摘要: 执行结果 验证1 验证2 函数打印了 验证3 阅读全文
posted @ 2020-02-15 13:58 梦乡尘子 阅读(119) 评论(0) 推荐(0)
摘要: ```python class CarFactory: '''python实现单例工厂模式''' __obj = None __flg_init = True def __new__(cls, *args, **kwargs): if cls.__obj is None: cls.__obj = object.__new__(CarFactory) return cls.__obj def __i 阅读全文
posted @ 2020-02-15 13:39 梦乡尘子 阅读(180) 评论(0) 推荐(0)
摘要: ```python class CarFactory: '''用Python实现工厂模式''' def creatCar(self, car_name): if car_name == 'Benz': car = Benz() elif car_name == 'BMW': car = BMW() else: car = BYD() return car class Benz: def __ini 阅读全文
posted @ 2020-02-15 13:38 梦乡尘子 阅读(131) 评论(0) 推荐(0)
摘要: ```python class MySingleton: '''这是一种简单的单例设计模式的实现方式''' __obj = None __flag_init = True def __new__(cls, *args, **kwargs): if cls.__obj is None: cls.__obj = object.__new__(cls) return cls.__obj def __in 阅读全文
posted @ 2020-02-15 13:17 梦乡尘子 阅读(112) 评论(0) 推荐(0)