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The Liskov Substitution Principle (LSP) is one of the basic principles of object-oriented design. The Richter substitution principle says that wherever a base class can appear, subclasses can certainly appear. LSP is the cornerstone of inheritance reuse. Only when derivative classes can replace base classes and the functions of software units are not affected can base classes be truly reused, and derivative classes can also add new behaviors to base classes. The Richter substitution principle is a supplement to the "open-close" principle. The key step to realize the "open-close" principle is abstraction. The inheritance relationship between the base class and the subclass is the concrete realization of abstraction, so the Richter substitution principle is the specification of the concrete steps to realize abstraction. --From Baidu《东方华尔街》讲述了一队隐世的金融雇佣兵，狙击政经界传奇人物，并搅动整个金融市场的复仇故事。吴镇宇饰演的叶抱一和张孝全饰演的韦航原本是师徒关系，他们怀揣理想组建CASH1.0，希望凭借一己之力维护健康金融秩序，无奈被金融巨鳄幕后操控，师徒之情却反目成仇，十年后CASH2.0粉墨登场，展开了一场个人恩怨和社会责任的精彩博弈，并将整个金融市场卷入了争斗的漩涡中。郝运来由村长当上油坊营子乡的副乡长，为了乡里的经济发展，他辛辛苦苦地跑项目，而其他的两个副乡长却紧盯着乡长的职位，不干实事。原来的乡长调离后，县里任命郝运来为代理乡长，两个副乡长心里十分不平衡，尤其是黄副乡长，处心积虑地要把郝运来整倒。于是在他的策划和指挥下，村霸胡全和胡二用尽了可能的手段来整郝运来。他们先是送了郝运来1万元钱，想事后告他受贿；又找人砸了几家饭店，嫁祸郝运来；还告他偷税漏税以及窝藏违反生育指标的小姨子。郝运来在黄的诬告下被停职反省，黄上台后大搞形式主义，谎报政绩，还把胡全聘到了派出所。群众的眼睛是雪亮的，黄的一切算计最后宣告破产，郝运来的代理乡长职务得到恢复。在郝的主持下，乡里的重大引资项目矿泉水厂终于奠基。-With determination to study, fishing for three days a day can improve. For example, if you can achieve barrier-free reading in English, you can't play casually and stick to clocking in with your mobile phone app. Setting reminder push and consciously focusing on actions involve time management and how to focus on the scope. At present, individuals use the simplest tomato working method.楚留香，江湖中大名鼎鼎的盗帅，轻功天下一绝，所到之处，皆留下淡淡兰花清香。香帅入皇宫盗得异宝琥珀观音，内藏一代大侠“小李飞刀”李寻欢亲手木刻美人，凭此可要求李寻欢满足一个愿望。楚留香自幼受恩并师承于李寻欢，但始终不知自己身世，此番盗宝，正是为此。楚留香在盗宝过程中，邂逅一代神偷司空摘星的女儿司空星儿和她的义妹苏蓉蓉。在躲避朝廷追捕中，李寻欢为救蓉蓉撒手人寰。楚留香与司空星儿为寻解药与自身身世，结伴南国行，谁知到达后发现香帅是南国王子，应承帝位，由此引发了一场灭绝亲情的宫廷斗争。其间楚留香和司空星儿在南国堕入爱河……一边是同生共死的红粉伊人，一边是惺惺相惜的卿卿佳人，风流盗帅楚留香，会如何面对两个痴心女子的感情？一边是享尽荣华富贵的无上帝位，一边是闲云野鹤般潇洒的江湖生活，江湖奇侠楚留香又会如何选择呢？……One day in April 2014, he and another young man went on a mountain tour together. When he found four suspicious targets suspected of illegally crossing the border in the dim light of night, he asked another young man to go down the mountain to inform the villagers that he would risk stepping forward and strike up a conversation with them to delay the time. Who knew the other party was very cunning, aware that he was a border guard, he pulled out a machete more than one meter long and cut off his arm with one knife. He told me that it was worth the arrest of the four criminals with one arm.十七世纪初，不明飞行物出现在朝鲜上空，由此开启了一段绵亘四百年的传奇因缘。时间来到当代，当年来到地球的外星人以大学教授都敏俊（金秀贤 饰）的身份生活在韩国的普通人中间。还有三个月一枚彗星即将接近地球，届时这个在地球上滞留了四百年的外星人将得以返回故土。只不过，在此之前他总会想起初来之时遇见的少女徐宜花（金贤秀 饰），也渴望再见到12年前救过的一个小女孩。敏俊与颇受人诟病的国民偶像千颂伊（全智贤 饰）比邻而居，而且后者又是他所在大学的学生。最初的交流并不顺畅，但敏俊很快发现这个女孩和他竟有着如此深的渊源。