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　　一伙海外敌特“教主”组织闻讯秘密训练一批特工，企图阻止肩负建国重任的专家搭载的专列出境，妄想将新中国的建设美梦扼杀于摇蓝中。Mines (100 points)严世藩叹了口气，再次睁眼，想好这些谁决定谁，谁又更重要，早日归浙，听天由命。1948年，国共大决战一触即发，原本只想苟活于乱世的江州城大名鼎鼎的修脚师傅杨福双无意中卷入了一场暗杀阴谋。为求自保，他不得不周旋于江湖、奸商、贪官等各方势力之中。性格外向的凌亦蕊执着地追求着杨福双，而杨福双却一心将李芙蓉救出青楼，于是三人一起周旋于三教九流之中，并和蔡少锋等人一起平反冤案、营救孤女、打击恶霸、揭露贪官，成功帮助共产党组织追回一笔失踪多时的巨款，众多小人物演绎了一场亦庄亦谐的战斗喜剧，最终迎来了江州城的解放。In the above code, we use three functions, order500, order200, orderNormal to handle its own business logic, If the current own function cannot handle things, We pass it to the following function to handle it. By analogy, Until there is a function that can handle him, Otherwise, the responsibility chain mode will leave the chain directly, telling that it cannot be processed and throwing an error prompt. Although the above code can be used as the responsibility chain mode, we can see from the above code that the Order500 function depends on functions such as Order200, so there must be this function, which also violates the open-closed principle in object-oriented. Let's continue to understand writing flexible and detachable responsibility chain nodes.ChannelId)ps：晚上停电，停了两个多小时，今天就一更。