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State mode refers to allowing an object to change its behavior when its internal state changes. The object seems to have modified its class. Divide this sentence into two parts by commas. The first part means to encapsulate the state into a separate class and delegate the request to the current state object. When the internal state of the object changes, different behavior changes will be brought about. The second part is from the customer's point of view, the object used has completely different behaviors in different states. The object seems to be instantiated from different classes, but in fact this is the effect of using delegates.玉米怒叱大苞谷：谁说二姐比不上那个女人美了？你真是瞎了眼。The 23 design modes, in fact, the predecessors have summed up the ways to solve the problem. Their aim is to ensure the low coupling and high cohesion of the system. The principles guiding them are nothing more than the design principles of packaging change, single responsibility, interface-oriented programming, etc. After that, I will continue to share my WCF learning process. Although there are many WCF series in the blog park, I felt that it was not necessary to write them before, and I felt that I could use them. However, I did not write them. I always felt that the knowledge was not my own and I did not feel in-depth. Therefore, I still want to write such a series. I hope all bloggers will support me more.热情开朗的朱丽珠为刚失恋的好朋友严望佳安排了一场异国的散心之旅，然而对于朱丽珠“一厢情愿”的安排，性格稳重的严望佳却并不领情。萦绕着失恋阴霾和对人生未来的迷茫的严望佳封闭了自己的内心，两人也因此在旅途中爆发矛盾，这次的争吵让两人分道扬镳。随后朱丽珠意外被卷入了一起事故，陷入危机。或３ｇ四面楚歌，这就是张良想到的办法。The investors are also very sympathetic when they see those investors stepping on thunder. However, stepping on thunder does not mean that money is gone. What can investors do?午夜出租车班海和班龙是一对双胞胎，哥哥班海是刑警，弟弟班龙是出租车司机。盗车集团误把弟弟认作班海，将之重伤入院。刑警队将计就计，让班海开起了出租车。终于引蛇出洞，把歹徒一网打尽。影片大量使用索德伯格式的手提式摄影和冈萨雷斯的叙事手法，但不慎埋没于当年中国广大的优秀国产主旋律影片之中。