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Soon I saw Li Jianzhong's C # Object-Oriented Design Pattern Lecture on MSDN's Webcast. A very good series of lectures gave me a new understanding of design patterns. I realized that learning design patterns, specifically learning object-oriented design patterns, should start with learning object-oriented. "The principle of object-oriented is like understanding the rules of chess, and the design pattern is equivalent to a mess. I don't know what the rules look at." Since I have been doing ASP.NET development for the previous year, although I have been writing classes, learning Duwamish to make hierarchical architecture, typed DataSet and custom entity classes, it seems that I haven't used interfaces much in the past year, and I seldom use any polymorphism. In fact, the understanding of object-oriented programming is still very vague.It is also because the public has prejudice against weightlifting, and it is not possible to change this prejudice in a day or two, which also makes it difficult to select weightlifting materials. Liu Eryong came to Qingdao Weightlifting Team in 2003, As a coach for 15 years so far, He still sighed with emotion and said: "For so many years, there have been almost no children in Qingdao City to practice, even in Laoshan District. We have selected talents from Pingdu, Laixi, Jimo and other surrounding districts and cities. Even so, we have a good view of ten athletes, have to communicate with parents and do work with children, and finally we can come to five or six, which is even good." Speaking of which, Liu Eryong showed a wry smile.他们越狱后，豹强主张到家驹随口编出来的家乡躲避，幸得杨建华提前安排，才没有漏出马脚，杨建华自称家驹妹妹，与他们同行。他们来到香港见到了集团的老大猜霸，顺利成为集团的一员。猜霸带着手下前往吉隆坡营救被绑架的妻子，遇到了家驹的女友阿美（张曼玉 饰）。阿美不知家驹正在执行任务，以为他和杨建华在偷情。阿美的举动引起了集团成员的怀疑，连场大战一触即发！不知想些什么，一副神游天外的模样。针对6-9岁的儿童制定的英语课程。