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As above, the code uses the policy pattern to refactor the code. It can be seen that the code responsibilities are updated clearly and the code becomes clearer.为了挽救最后的幸存女孩，一位潜心于一项突破性研究计划的儿童临床医学家凯瑟琳·迪恩，受命用现代高科技进入到昏迷杀手的大脑当中。她进入杀人凶手的灵魂无疑是一次奇异未知并且充满危险的旅程，当她进入后，一个FBI探员紧随其后，同时间赛跑去揭开层层线索，查找那个失踪女孩的下落。不幸的是，事情并没有像预期那样的顺利，凯瑟琳·迪恩发现她被困在了这个杀手的思维世界里，真正有欲罢不能的感觉。隐藏吸血鬼身份的转学生白玛丽（金雪炫饰）和拥有着让所有女生都为之着迷的外貌、出众的才能以及运动实力的人气男学生郑在民（吕珍九饰），还有花美男吸血鬼韩世厚（李宗泫饰）之间发生的浪漫感性幻想故事。自然融入了社会蔓延的对少数弱势群体歧视的现象。改编自同名人气网络漫画的电视剧作品 。《为爱放手》讲述了平面模特李莉（童菲饰）和乐队主唱谭耀（姜潮饰）两个处在迷茫期的年轻人相遇相爱，和一行人面对梦想、爱情、现实时的挣扎与选择。一场华丽的化妆舞会，青春小正太Lucas却吓跑了所有朋友。因为短短几秒钟，乖巧懂事的他变成了一个长着翅膀的超级大怪物！而他自己也被吓得张皇失措。气愤父亲隐瞒家族身世之余，Lucas偷拿到一张神秘地图，决心靠自己找到父亲偶然提及过的真正家乡——怪物岛。当他历经艰险完成远航，眼前的所有景象都足以让他目瞪口呆。可没想到，这场寻根之旅，让他找回亲人的同时，也让他自己和岛中居民陷入了一场生死大考验……We can see the above code; Player-to-player coupling code has been removed, However, all logical operations are put into the intermediary object for processing. Any operation of a certain player does not need to traverse to notify other players, but only needs to send a message to the intermediary. The intermediary processes the message after receiving it, and after processing the message, the processing result will be fed back to other player objects. The intermediary mode is used to remove the coupling code between objects. Make the program more flexible.