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Code as above; Write three functions of order500, order200 and orderNormal respectively, and process their own business logic in the functions respectively. If their own functions cannot be processed, they will return the string nextSuccessor to pass it back, then encapsulate the constructor Chain, pass an object fn into it, and have their own attribute Successor. There are two methods setNextSuccessor and passRequest on the prototype. The method setNextSuccessor specifies the order of nodes in the responsibility chain, and saves the corresponding method to the attribute this.Successor, chainOrder500. SetNextSuccessor (chainOrder200); ChainOrder200. SetNextSuccessor (chainOrderNormal); Specifies the order in the chain, so this.Successor references the order200 method and the orderNormal method, so if chainOrder500.passRequest (1, true, 500) is called for the first time, the order500 method is called, output directly, and chainOrder500.passRequ is called for the second time.深夜，一座新建不久的高档公寓内一位女子从阳台坠楼身亡，此后便传出了该房间闹鬼的传言，公寓内的住户纷纷搬走，四位寻求刺激的年轻人特地租下了这里。然而他们住进来后，却每晚夜夜笙歌，正当玩得兴起之时，房间内突然发生了一系列的诡异的事情，最终酿成了三死一伤的惨剧。便衣侦查员狄迪威（梁辰羽 饰）平时靠群演身份掩护自己，却在好友蔡崇的介绍下阴差阳错的干起了“捉鬼”的工作，职业的敏感让他成功的破获了这起悬案。然而当真相大白于天下之时，灵异事件却再次发生，感觉被鬼缠身的狄迪威只有替鬼还愿才能摆脱邪灵！是人？是鬼？一个更大的秘密正逐渐浮出水面······郑家这边则是小葱、黄瓜和黄豆　　马军与黑帮的白热化对抗中，华生卧底身份被揭，险些送命。渣哥为了脱身，一夜间消灭所有证人、证物。渣哥判刑前一晚，只剩下唯一证人华生。阿虎冒死前往杀之，马军以一敌三，在狭窄的电梯空间跟阿虎死斗，阿虎最后被杀。马军虽保华生一命。但华生因女友被抓走，被迫隐瞒马军离去。故事发生在一个小镇高中,在某个普通的早晨,戴面具的不明人士冲进学校展开屠,杀,造成四名学生死亡。警察赶来调查此事后,得出的结论是凶手并不是外来人员,421名学生和老师里隐藏着真正的凶手。项伯摇头苦笑道：子房老弟高才，东西世间万事，此事意味着什么，你自然知道？何必和老兄我打哑谜呢？张良脸上不禁浮现出一丝淡淡的愧疚，至于是否发自内心，只有子房先生自己知道了。