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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.大清早，村民细种看见熊家兄弟追赶逃跑的两名年轻女孩。细种把这一事情告诉村支书叶光荣。叶光荣是熊家兄弟的傀儡，在熊家兄弟面前很听话。熊家兄弟是村里的皇上，熊老三是村长，熊老二是会计，老大和老四是村办厂的经理。全村人都怕熊家。叶光荣表面上也怕，可心里却一直憋着个坏，准备瞅准一个机会把熊家兄弟一举消灭。听到细种报来的消息，叶光荣知道机会来了。他去镇上报告此事，却被镇长和书记给批了一顿。叶光荣决定自己行动。叶光荣让细种找来水根和大旺，一起商量抓熊方案。水根、大旺和熊家都有深仇大恨，两人都恨不得剥熊家兄弟的皮。几个人一番分析，越分析越怕，都想站起来走。叶光荣急了，事情到了这份上，早晚会传到熊家耳朵里，那时候自己还有活头？于是叶光荣只好说这事儿是县里面交待的……在英国与西班牙的战争中，女王展现出的强大魄力，把大不列颠推向霸主的辉煌巅峰。25练兵统兵都是实打实的功夫，我只能想出战法，却不知如何执行战法。Women's 1 event.