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周菡一边吃。胡钧问道：若是在下坚持要求割地赔偿呢？阿瑛仰天叹道：那便是最坏的结果了。船主杨长帆任其居在总督府或出海归它城，半数弗朗机人言谢后驾船离去，半数留在总督府。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.他们既然喜欢扯些东家长西家短，你就该演这方面的戏让人看，如此来的客人才多。Understand the benefits of using proxies to implement a single-column pattern