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When using flexible connection traction device, the distance between the two cars is more than 4 meters and less than 10 meters.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:维克托的脑袋里总是充斥着古灵精怪的奇思妙想，在他的帮助下，菲丽西找到了从孤儿院逃跑的方法，两人结伴相互扶持踏上了前往巴黎的旅途，并且在经历了千难万险之后顺利抵达目的地。到了巴黎后，菲丽西才发现，属于她的冒险才刚刚拉开序幕。一部讴歌改革开放40年伟大变革、反映中国农村深刻变化、弘扬新一代农民创新精神、探寻当代农业发展道路、思索中国三农问题的史诗大剧。全剧围绕“活下去、富起来、新农民”的结构 ，讲述了在中央“一号文件”的带领下，以秦学安、赵秀娟、张天顺、张守信、秦田、秦奋为代表的三代农民和农村干部，他们以亲历者、践行者、见证者的身份，在改革开放四十年的伟大变革中，为追求美好生活而艰苦奋斗的故事。张杨急忙道：王爷，他说的也有道理，这样大一笔银子，做见证是应该的。The above will basically be about the game mechanism, there is no clear value in the game interface, there is a 7788 part about the damage.Chapter 6