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影片讲述了发生在1965年到1973年俄罗斯军事人员在支持越南战争中遇到的事情，保罗是从莫斯科调至越南战场的俄罗斯士兵，在战场中他发现了队伍里出现了叛徒，原本想揭穿阴谋，但保罗自己却陷入了别人设好的圈套。为了证明自己的清白，保罗踏上了一条意想不到的道路Public interface Observer {该剧讲述了法医师秦明，携手刑警林涛、法医助理陈诗羽等人，在一个个扑朔迷离的案件中寻找真相，倾听逝者“遗言”，为逝者代言的故事。In the system, the client often needs to interact with multiple subsystems, which causes the client to change with the change of subsystems. At this time, the appearance mode can be used to decouple the client from each subsystem. Appearance mode refers to providing a consistent facade for a group of interfaces in the subsystem. It provides a high-level interface that makes the subsystem easier to use. For example, the customer specialist of Telecom can let the customer specialist complete the services such as charging telephone charges and modifying packages without interacting with various subsystems by himself. The specific class structure diagram is as follows:就在今天，天启再以一部《寻秦记》，带我们穿越千年，来到名将如云、百家争鸣、霸主枭雄辈出的战国。Through the management of the connection pool, the sharing of database connections is realized, and the connection does not need to be recreated every time, thus saving the overhead of database recreation and improving the performance of the system!