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Open the run, enter cmd, enter:　　神龟们又处于备战状态了！他们再次联合起来，准备向黑暗势力出击！这位住院医生的预后很好：福克斯周一宣布，它已经将这部医疗剧续演第三季。When making decisions, one should not immediately think about what activities or plans to do to detonate. These are only means of execution and are the final result of the decision-making process.愿此刻永恒。一进入网站，陈启就看了小玉玉玉啊的帖子。Est (2, true, 500); This method does not match from the first node order500 in the chain, returns the success string, and then this.success & & this.successor.passRequest.apply (this.success, arguments); Execute this code; As we said above, the attribute this.Successor refers to two methods, order200 and orderNormal, so the method order200 is called, so the value is returned, and so on. Then if we want to recharge 300 yuan's red envelopes in the future, we can write the function Order300, then list the chain chain and package it, and specify the order in the responsibility chain. The business logic inside does not need to be processed.