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主持人邓璐博士高站位，深度对话传说中的12位科技大咖，真实展现新时代科技人的智慧、担当与思考，同时，直面局限与失败的可能。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.忽然想起周菡，忙对葫芦道：葫芦哥哥，周……这位大哥救了我。市场销售员甘小文生性吝啬，口没遮拦。久而久之，他身边的人都对他敬而远之，直到有一天，甘小文做了一个梦：梦中见到自己的良心告诉甘小文，他只剩下七天的性命，七天内甘小文必死无疑。甘小文对此半信半疑地去参加唯一的朋友铁男的婚礼，却在婚礼上胡说八道，使婚礼不欢而散。他带醉开车回家，不料被撞成重伤，昏迷时良心再次出现，并允诺锁给他改过自新的机会，条件是七天内必须有七个人来探望他。芥子园的东墙墙头上，两个黑影如同壁虎般紧贴在墙头上，一边如蚊蝇般交流。