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There is no doubt that people in the IT industry are extremely smart. Even in other industries, their work also requires wisdom and creativity. In the IT industry, it needs extremely cutting-edge research and development work. Modern industry has evolved to the foundation of the business world that includes generating and supporting information flow.There are also such ~Event_name: The name of the event created (uniquely determined).游戏改编剧《光环 Halo》确定由Showtime预定10集首季，系列讲述了26世纪时，人类与外星种族之间的史诗级宇宙战争。一位是三次参战的军曹，一位是新来的上尉，在他们的带领下，一支美军突击队在越南的战场为生存而战斗。本片讲述美军一个敢死连某排在越南战场上的各种经历，越南战争是美国历史上历时最长的战争，越战期间，一般美军士兵都要到越南战场服役一年。《红娘子》讲述了红军女战士王小红为了给根据地的伤员筹集药品，假扮新娘坐上了花轿，她原本打算去玉屏梅家大药铺找她当掌柜的爹，却在半路被一伙土匪抢上了黑龙山。这原本是梅家大少爷梅贤祖串通黑龙山土匪设的局，目的是要抢回被军阀司令马戎强娶的老相好牡丹。没想到抢错了花轿绑错了人。马戎带领部队偷袭剿匪，土匪首领黑木蛟挨了马戎奸细的黑枪。The policy pattern defines a series of algorithms and encapsulates each algorithm so that they can be replaced with each other, and the changes in the algorithms will not affect the customers who use the algorithms. It is necessary to design an interface to provide a unified method for a series of implementation classes. Multiple implementation classes implement the interface, design an abstract class (optional, belonging to auxiliary class), and provide auxiliary functions. The diagram is as follows: