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闹这么大动静，永平帝不可能不知道，因此深恶镇国公卑劣手段。(未完待续……) show_style();。The 60% of the people, who live in the middle and lower classes of society and have no special achievements, expect their children to make great achievements in the future.1. Need to extend the functionality of a classIn 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.越来越多的书友开始为黛绮丝和小昭写评论，写同人文章，写后续故事。Denatured synthetic fibers: PVC fibers and denatured polyacrylonitrile fibers are flame retardant fibers.