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Time relay is a kind of delay control relay, which does not immediately let the contact move after obtaining the action signal, but delays for a period of time before letting the contact move. Time relays are mainly used in various automatic control systems and start-up control circuits.Update to v7.2.0 b_release;那就好。1998年的过去，陈韵如从昏迷中醒来，在她昏迷的这几天，她做了一个好长好长的梦，梦里的她，名字叫做黄雨萱…　　为此薛风发一座东北小城，酒厂封箱工宋海亮，好喝酒，好吹牛。酒厂因经营不善面临倒闭，厂长欠薪欲跑路，宋海亮带领工人围追堵截，迫不得已，厂长抵给了宋海亮一仓库的库存，没想到这一仓库的库存竟然只是空纸箱。用买房的钱为工友发了工资，赔了夫人又折兵的宋海亮万念俱灰……同时间南方小城，假装老板的销售熊初墨，为了空手套白狼，声称有价格不菲的大订单要签，电话打至东北酒厂，宋海亮接到电话，灵机一动，决定假装酒厂老板与大熊见面，签下这单。于是，“东北大酒鬼”碰到了“华南不倒翁”。互不知情的两人，在东北相遇，发生了一场令人啼笑皆非的故事……After understanding the history and classification of design patterns, how should we learn design patterns? Before learning the design pattern, readers must establish a kind of consciousness, that is, the design pattern is not only a method and technology, but also an idea and a methodology. It has nothing to do with the specific language. The main purpose of learning design patterns is to establish object-oriented ideas, program to the interface as much as possible, with low coupling and high cohesion, so that the programs you design can be reused as much as possible. "Specious. Learning design patterns can better understand object-oriented ideas. Design patterns are some design skills and tricks. Don't rise to ideas and methodologies, okay?"