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The adapter mode converts the interface of a class into another interface representation expected by the client, in order to eliminate the compatibility problem of the class caused by interface mismatch. It is mainly divided into three categories: class adapter mode, object adapter mode and interface adapter mode.User class unified interface, User1 and User2 are different objects respectively, and they are related. If the mediator mode is not adopted, the two need to hold references to each other, so the coupling degree between the two is very high. In order to decouple, the Mediator class is introduced to provide unified interface, and MyMediator is its implementation class, which holds instances of User1 and User2 to control User1 and User2. In this way, User1 and User2 objects are independent of each other. They only need to maintain a good relationship with the Mediator, and the rest is maintained by the MyMediator class! Basic implementation:The generated combustible gas can be mixed with oxygen and diffused to the ignited part;Let's take a look at the basic structure that defines the literal quantity of an object (the structure is similar to the monomer pattern) as follows:原来这厮不是因为闲着太久，想要上战场历练，点惦的是首功啊。A: It killed 10 firearms division of Thunderbolt Hall. Of the 10 firearms divisions, I personally think that the first seven must be killed in sequence, otherwise the plot cannot be pushed forward and there may even be situations such as card plot. The latter three, without a fixed sequence, can be killed.阿莱克斯(休•格兰特 饰)是一个八十年代过气流行乐歌手，近年好不容易逐渐获得更多的演出机会，更得到流行天后Cora邀请他写歌并合唱该曲。但此刻阿莱克斯碰到了创作瓶颈，多年没有作曲之余，而且从来没有过作词的经验，现在却要在几天内作出一首畅销的流行曲。