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In fact, the name of each mode indicates the function of the mode. The agent mode is to have one more agent class to carry out some operations for the original object. For example, when we rent a house, we go back to find an intermediary. Why? Because you do not have a comprehensive grasp of the housing information in this area, I hope to find a more familiar person to help you do it. This is what the agent here means. Another example is that we sometimes engage in lawsuits, we need to hire lawyers, because lawyers have expertise in law and can operate for us and express our ideas. Let's look at the diagram first:B) It is suggested to start from a simple scene and discover or design a certain pattern by yourself. From this, you can understand how the model solves the problem. In this way, the model becomes your own thing, and you will not have the problem that it is easier said than done. All design patterns are just the application of basic principles and concepts in specific occasions. You may not know the name of a design pattern, but you know all its advantages, disadvantages, variants and applications. Seeing mountains is not mountains, seeing water is not water.　　张基龙将在剧中饰演朴模建，他是制作游戏音乐的“密林Sound”公司代表，同时也是天才作曲家。齐王宫和临淄城里还有多少越国探子？甚至守军将领之中已经有人和越国勾结了。　　这两人在职业、性格、生活习惯上都截然不同，整天矛盾不断。公寓另一对异性合租的两人刘恋和康平看上去却是相敬如宾，然而在这种客气之下隐含着不可逾越的距离：康平爱刘恋，刘恋却对裔天情有独钟。任飞儿考舞团失败，只得去一家三流的艺校当老师。转头一看，好几个少年簇拥着一个明艳动人的小姑娘，大概十一二岁的样子，说说笑笑地从刚才的路上过来了。