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　　但是当Natee和Prin被房间的原主人Talae摆了一道的时候，两人的生活从此不再平静了。因为Talae在这其中做了一件很不厚道的事，他骗两人签了同一份合约，所以两人只能挤在With Love公寓一个小小的房间里。12. Create conditions, enrich books, newspapers and magazines, and introduce incentives to encourage employees to study spontaneously, improve their quality or provide benefits for outstanding personnel to go out to study, train and grow.OCP (Open-Closed Principle) principle emphasizes that a software entity (class, function, module, etc.) should be open to extension and closed to modification. That is, every time there is a change, the behavior of the existing type should be enhanced by adding new code instead of modifying the original code.这时小葱过来，略问了香荽几句刚才的事。黄豆哭着说，知府大人把他家围住不让进出，正抄他家呢。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玉米不住地问，张槐不厌其烦地解说，重点告诉他，这山上哪些花和野菜是能吃的，哪些草有毒，动物们都有什么习性等。