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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.黎章心里咯噔一下，叹口气想道：好歹有单独的帐篷住了。旋即有抓起那方宝玉，抚摸在手中，几乎要掉下眼泪来。看到章邯颜色低沉，这心中的焦急不知道有多浓重。III. Precautions在月刊漫画ZERO-SUM上连载的《春之诅咒》，讲述了溺爱的妹妹去世的立花夏美和妹妹的未婚妻冬吾的爱情故事。在禁断之恋中摇摆不定的夏美，身为财阀名门子弟的冬吾，作为恐怖的幻影现身的妹妹？描写了春天复杂的思绪卷起旋涡的奇妙的三角关系。At present, the police have formally summoned him for investigation.