五月花社区

丁大人真是拿我当自己人。In real life, observer mode can be seen everywhere, for example, subscribing to parade numbers in WeChat, subscribing to blogs and paying attention to friends in QQ microblog, all of which belong to the application of observer mode.雨晴和颜飞不期而遇，在颜飞的追求下，雨晴决定接受他的感情，但颜飞突遭家破人亡的打击，不辞而别。雨晴对颜飞十分失望。一年后雨晴遇到了落魄的颜飞，但此时她已与自己的上司杨简订婚，为了让罹患绝症的母亲安心，雨晴急忙筹备婚礼却撞到杨简对感情的不忠。雨晴愤然离开杨简以工作忘记感情的伤痛，并最终在颜飞的帮助下重新振作了起来。二年后，她和颜飞携手走进结婚礼堂。正当他们沉浸在甜蜜的婚姻生活中，雨晴却突然被查出患了脑肿瘤并且已经怀了孩子。雨晴为了生下孩子坚决拒绝化疗，颜飞倾家荡产为她寻找特效药。最终雨晴生下了孩子，在颜飞为她燃放的漫天烟花中倒在了颜飞的怀里。Mediator pattern defines a mediation object to encapsulate the interaction between a series of objects. Intermediaries do not need to explicitly refer to each other between objects, thus reducing coupling and independently changing their interaction behavior. The specific structure diagram is as follows:High Cost Density Tests Operators