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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."Even if you have stripped me of all my clothes,故事的创意为中华传统饮食不仅美味、养生，还有相生相克的道理，就像爱情让人沉醉也能杀人。顾涧忙道：那就娶她为妻。HBO喜剧剧集《消消气/抑制热情》宣布续订第11季。EventHandler is a delegate《同居男女》讲的是一个俏房东和四个极品租客之间的囧事和趣事，故事以他们的“同居生活”为主线，折射当下年轻人的人际价值观和爱情观。