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　　一位魅力睿智的富家公子秦松平，因身世显赫，娱乐集团老板的身份让他身边美女如云，虽然结婚，却从来没有感受到爱情的滋味。二零一零年，国家航天局挑选了一个香港科研团队作合作伙伴，于杰教授就是团队的掌舵人，他将会为登月任务研发「相机指向系统」。Re-understanding OO: Object-oriented programming is an idea to think about software design structure with object-oriented thinking, thus strengthening the object-oriented programming paradigm. Object-oriented features are encapsulation, inheritance and polymorphism. "Do these count?" . So from that beginning, when I design a class, I keep reminding myself of the following three points:First of all, look at the rules in the INPUT chain in the filter table. The relevant commands for viewing the rules have been summarized above and will not be repeated here. If you forget, please review the above.元末明初，四方门主韩林儿建韩宋帝国，与朱元璋争夺天下。韩部很快败落，战至仅剩手下东方青木、北堂墨、南宫烈和西门若水等人。韩中箭将死，他将风火雷电四块麒麟玉分给四大弟子，望有朝一日合齐四玉以寻宝藏，重起大事。正直聪颖的啸天深受擎手剑派掌门宋凌霄的厚爱，其女吟荷与啸天相互倾心，此均遭宋凌霄大弟子易水寒的妒恨。他暗中勾结蒙古云妃以及单公公，欲除凌霄、啸天以及啸天之父原少卿。但云妃全然不知原少卿当年收养了自己的婴，就是啸天。她疯狂报复，欲夺四方门的四块麒麟玉，以寻宝藏复兴大元。云妃为得到麒麟玉，结合易水寒等人，杀死南宫烈、致残西门若水、亲手将啸天推下万丈深渊，并与出卖四方门的北堂墨倾力拼杀。啸天却铙幸没死，并在狱中和深洞里习得东方青木和西六若水的四方神功。馨儿对英俊仗义的啸天倾慕有加，与之生死相随…One problem with the factory method pattern is that the creation of the class depends on the factory class, that is to say, if you want to expand the program, you must modify the factory class, which violates the closure principle. Therefore, from the design point of view, there are certain problems, how to solve them? We use the abstract factory mode to create multiple factory classes, so that once new functions need to be added, we can directly add new factory classes without modifying the previous code. Because the abstract factory is not very easy to understand, let's look at the diagram first, and then it is easier to understand with the code.1937年抗日战争爆发，继淞沪战争失利，南京吃紧。中华民族危急存亡之际，国民政府宣布迁都重庆，日军从 1938年2月18日至1944年12月19日，对重庆及周边地区实施无差别轰炸，长达六年零十个月。重庆市民面对日军残酷的狂轰滥炸，依然向死而生、乐观坚强，展现了重庆不死中国不亡的民族气节。为了保卫家 园，年轻的中国飞行员在美国飞行教官的帮助下与日本空军展开了一系列惨烈悲壮的空战。虽然飞行装备远远落后于日 军，但他们宁愿战死在天上，也不在地上苟活，与敌人在长空进行殊死搏斗......