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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.But in that case, Not even considering so many dangers, This performance of '74 spray' is of great use, I remember there were 4 '74 spray' on the position at that time, There are two recruits who operate them. Two veterans, Both veterans were squad leaders, All have the skills of air injection, Facing the big wasp descending from the pavement, The two of them were obviously forced to hurry, Take up the '74 spray' and aim at the position where the big wasp is relatively concentrated in the sky and spray it out. If it weren't for the critical situation at that time, the two squad leaders would definitely not have this kind of "dangerous operation", while the other two recruits watched the veterans take the lead and learned to do so. Although they had not received relevant training and the accuracy of spraying was not as good as that of veterans, they finally sprayed out and did not hurt themselves or other comrades in arms.项羽也有一种失落感，兵分两路本来没啥，哪怕是刘邦走到的是简单易行的黄河之南。喜剧系列关于家庭，关系和生物，编剧和主演萨拉帕斯科。这样豪华的武装炮舰，散寇是不可能做到的，就算是盘踞嘉兴的那一批也做不到，甚至弗朗机也做不到，能有这样武装的，放眼四海，也只有一个人了。墨西哥贩毒团伙老大何塞·里维拉，近期在伊斯坦布尔扩展毒贩业务，不断除掉那里的毒枭，霸占毒品销售市场。