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2. It is to use a proxy class to call the original method and control the generated results. This method is the proxy mode.　　民国初年，乱世飘摇，江湖奇侠吕三的出现，让京津的达官贵人陷入慌乱之中。锁骨功，螺旋风，入高墙铁壁如无人之境，易容术，蝎子功，夺回国家珍宝的背后是吕三让人咋舌的惊人智慧。抗日志士，北京警察局侦探队长周志岳的出现，改变了吕三的人生轨迹。从闯荡江湖的热血奇侠到积极抗战的民族义士，从被初恋抛弃到最终赢得真爱，吕三用他坚韧的毅力和铁血的性格谱写乱世中的又一个人生传奇。战死的军魂，不同于任何魂魄。Each object has its corresponding state, and each state corresponds to some corresponding behaviors. If an object has multiple states, there will be many behaviors. Then the judgment of these states and the behavior completed according to the states will lead to multiple conditional statements, and if a new state is added, the existing code needs to be changed. This kind of design obviously violates the principle of opening and closing, and the state mode is used to solve such problems.14岁男孩Carey正在为第一次共舞做准备，他的爸妈很好奇舞伴是哪个女孩，但最后他们发现Carey的舞伴也是男孩……King bonus