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忙了一早上，马婆子和韩庆家的端上早饭，是稀饭配馒头煎饼，小菜有腌雪里蕻炒肉丝、红椒炒酸豆角、虾米黄豆酱，并一些腐乳、辣萝卜、腌黄瓜等，满满摆了两桌子。1Http://www.aqniu.com/news-views/29381.html青山、黄瓜、黄豆、紫茄跟刘蝉儿，听了这话都傻傻地瞅着他，不知如何说才好，因为，这娃儿说的太实在了。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.可有时候，我很用心地想杀敌，却根本连他的边也沾不上，反被敌人追杀。永平帝一口茶呛入气管，咳得惊天动地，吓得林公公停住不敢再说。