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他就是要飞出去。原本风光无限的白富美安德莱亚，因为犯了个错误，被迫和父亲搬到巴塞罗那的一个混乱街区避风头。她将自己关在家中以表达自己的不满，却被父亲强制要求去北口青年活动中心参加活动。在这里，她认识了跟自己本不会有交集的朋友，并且可以随心所欲地跳舞，做自己喜欢的音乐。但另一方面，出于虚荣心，她在曾经的好友面前将活动中心的伙伴们诋毁为“屌丝”。当她最终陷入一场爱情，当活动中心的小伙伴们无意中得知了她背着他们说出去的那些话，安德莱亚究竟该何去何从？此铳可有长柄？戚继光惊讶地打量着手中的燧发铳。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.2. Transcription of "Yi-ology Design Pattern 1.4 How to Learn Design Pattern" Guo Zhixue People's Posts and Telecommunications Publishing House到底是什么人？龙且的脸色无比阴沉。