《私人瑜伽教炼》2

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 BaiduDisadvantages: Too many similar objects are generated, which is not easy to troubleshoot!袁成美、欧阳挂居、季星华、瞿守治、赵松岗5人因为高三补习班而结缘，成为好友并在大学期间成立了“明日会”，从他们的校园生活，到踏入社会，各人之间都被一段错综复杂的爱情牵引。挂居与成美一开始便喜欢对方了，但挂居一直觉得自己亏欠前女友而无法跟成美进一步发展。而默默在成美身边守护的守治成为了成美倾诉心情的对象，性格开朗的守治常常制造浪漫气氛逗成美开心。终于，挂居与成美还是相爱了，但因为生长环境的不同，价值观的差异使两人分分合合。守治虽然深爱成美，但他知道成美真心爱着的是挂居，于是主动退出了竞争，继续默默守护成美。以现代艺术校园生活为背景，主要讲述了游戏少女夏晚，意外偶遇高冷学长辜寒飞，误打误撞进入南海市第一艺术中心，在冷酷傲娇学长及乐团成员间引发了一场场啼笑皆非的事故，最终夏晚究竟情归何处？高冷学长和暖心学长究竟谁才能赢得夏晚的芳心？该剧以河南兰考地区农民生活四十年的变迁为主线，讲述了豫东兰桐县后牛村自七十年代末的一穷二白，经过党和政府的扶植，村民齐心协力共同奋斗，到如今摘掉贫困帽子，家家富足的故事。嘟起红嘴儿，心下暗道：真是小气鬼。羽儿，不可如此一意孤行，章邯投降的。