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绿莹莹的山，天上飘着好看的白云朵。一到了秋天，满山的柿子树都挂满了金灿灿的柿子。翠兰的家就住在这样的一个村子里。一年多前，翠兰的老公因车祸去世。翠兰的心也跟着死了，她觉得自己这辈子都不可能再爱上别人了。但翠兰人长得好看，性格爽快，人又能干，不免招人惦记。可她却对追求者们一概不理。直到有一天，毫不起眼、老实巴交的穷光蛋马成出人意料地入了翠兰的眼。那天，翠兰遭到村里光棍的寻衅和羞辱，周围看热闹的人很多，却没人出来帮她。老实巴交的马成替她解了围。翠兰很感动，后来马成又几次帮她忙，她对马成心生好感，托媒人向马成提亲，却遭到了马成的拒绝。翠兰又恨又气，决心非马成不嫁，可是马成不理她。翠兰主动接近马成，对马成的儿子小东也格外好。马成要和翠兰结婚，遭到了妹妹马艳的强烈反对。马成很为难，两个人的婚事也因此搁置下来。翠兰经常向陈大川请教大棚种植经验，惹来不少风言风语。马成起初没在意，直到有一次撞见陈大川睡在翠兰家炕上，马成气得当即跟翠兰提出分手。误会解除后，马成才发现，原来自己已在不知不觉间喜欢上了翠兰…In addition to the information kept at home, I borrowed a lot of relevant books, Anyway, as long as it's about dogs, I basically read it, When I was playing my life on the Laoshan front line, The family also wrote to me all the way, Said let me pay attention to, live well, now catch up with the good situation of reform and opening up, to set up a concentrated dog raising, dog training, dog racing in the vicinity of Beijing, from pure blood pet dogs, to specially trained racing dogs, bulldogs, what you want, this is just like horse racing, do a good job that make a lot of money is a small thing... "《山海经之赤影传说》海报Liskov Substitution Principle, LSP (Richter Substitution Principle) means that subclasses must replace their parent types. In other words, in the process of software development, after the subclass replaces the parent class, the behavior of the program is the same. Only when the subclass replaces the parent class and the function of the software is not affected can the parent class be truly reused, and the subclass can also add new behaviors to the parent class. In order to look at an example of violation of LSP principles, the specific code is as follows:1601徐文长微微一笑，心知必早有安排。项羽微微一愕，上下打量道：你是魏豹的人？罗七回答道是：是的。