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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.The technical scheme further optimized by the utility model is that the filler assembly 9 comprises a graphite packing filler layer. The packing assembly 9 is secured by an O-ring 10 and a packing gland 11.电影果然不负众望，Daniel Day-Lewis的表现真可用无懈可击来形容。他将一位石油大亨的悲喜人生与奋斗之路展示得丰满之至，层次分明。他的表情，语气，肢体动作无一不是精心匠作，恰到好处，让观众完全融入到对人物的感受中从而忘却演员本人。可以说， Daniel Day-Lewis将凭此角色再获奥斯卡最佳男主角几乎毫无疑问。先生到来，实乃吾之大幸。小胡子见状，回头冲杨长帆夫妻使了个眼色，示意他们赶紧走，现在不是看打炮了，是看笑话了。项声对韩信似乎也没有什么好印象。