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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.Sound Card: DirectX Compatible Sound Card天道五十，大衍四十九，余一留众生。本系列包括《苹果森林的幻想》《苹果森林之谜》《苹果森林与平行城镇》，讲述的是Kitty与同伴们在森林里发生的带有幻想色彩的奇妙故事。In collecting the stories of the investors, I saw the following stories with the investors, hoping to give the investors the confidence to actively safeguard their rights and get back the principal.搞不好，这酒有大用途啊。When Tony flew to the entrance of the cave with the bomb in his arms, Stephen's anger replaced sadness, but at the same time he was afraid to let go. He looked at the future and knew Tony would not die. In fact, as he saw, he was extremely angry.