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Two interfaces:The adapter for the interface is as follows: Sometimes we write an interface with multiple abstract methods, When we write the implementation class for the interface, All methods of the interface must be implemented, This is obviously wasteful at times, Because not all methods are what we need, Sometimes only a few are needed, In order to solve this problem here, we have introduced the adapter mode of the interface. With the help of an abstract class, the abstract class implements the interface and all methods. However, we do not deal with the original interface, but only get in touch with the abstract class, so we write a class, inherit the abstract class and rewrite the methods we need. Take a look at the class diagram:The Source class is a decorated class, and the Decorator class is a decorated class. You can dynamically add some functions to the Source class. The code is as follows:3-0;说着。军旅题材电视剧，由中央电视台、第二炮兵电视艺术中心等联合摄制，共18集。讲述了中国导弹部队“东方旅”成长的艰辛历程。剧情讲述宋雨生作为代理旅长，带领手下官兵出色的完成了上级领导下达的任务，将东方旅改成快速反应部队的艰辛故事。板栗就知道秦淼会不适应，黑暗中，凑近她耳语道：忍着点。