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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.从山芋南瓜往下，小萝卜头们都蹦翻了天，他们可以跟学堂告假，去乡下疯玩了。PS: There are two types of cookies还有，大人去镇守眉城，这可是想不到的美差，吃饭睡觉都比这里不知好了多少。1942年，地下党员林剑松前往上海执行任 务，遭遇敌人重重劫杀，林剑松凭借一条 线索，追查到日军“梅机关”为占领长沙实 施的狱火计划：租借上海船王名下的云济 号货轮，秘密运载一批威力强大的生化武 器前往长沙战区。在上海站遭到毁灭性打 击的情况下，林剑松与幸存情报员乔少山 、徐光溥为炸沉云济号积极行动，争取云 济号设计师、抢夺炸药、锁定云济号航线 ，展开了一场接一场的生死对决，在付出 惨重代价后成功炸沉云济号，阻止一场灾 难的发生，完成一件不可能完成的任务。The lives of staff and residents at the fictional Kings Cross Hospital and Stanton House in Sydney in