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二哥是个可爱的小人物，因为落伍没文化，很难找到工作，生活和爱情常常出现问题。他虽没有父母，但妹妹以及二叔一家人都在为他操心。但二哥乐天知命，并不认为自己完了。他会去打零工，摆地摊，哪里有简单劳动，哪里就有他的身影。他关心别人，哪怕是帮倒忙也非助人一臂之力不可，不断会有女人因为他的可爱而喜欢上他，但不是因为他的不解风情就是因为他内心深处的自卑，每每错失了缘分。最终，二哥不懈努力，不仅找到属于自己的事业，更是寻到了真爱Command mode belongs to the behavior mode of an object. Command mode encapsulates a request or operation into an object, and separates the responsibility of issuing the command from the responsibility of executing the command through abstraction of the command. The implementation of command mode can provide the functions of revocation and recovery of commands. The specific structure diagram is shown below.项少龙看着赵盘说道：但是现在你有一个机会。讲述“如果科技可以帮你拥有‘来生’”：在2033年，科技可以在人死去之时，把其意识和记忆上传到一个数字虚拟世界，也就是你可以在里面永远地“活着”，甚至能通过VR技术与真实人类社会的人接触。　　强凭深谙女人心理，其佣金甚至比公司高层还要高，但讽刺的是他一直忘不了初恋女友戴梦妮(刘嘉玲 饰)。戴是个失意作家，每次创作都恋爱，小说完成便失恋，每次失恋都找强。　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.Showtime正式宣布续订《国土安全》第7季。