亚洲综合婷婷六月丁香

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眼看着汉国君臣之间斗法，我们也就有机会了。　　本片根据蒔田光治的原作改编。当战争的阴影笼罩王国时，即使是奇迹之歌的光辉也被染上了血色。所爱之人的生命被夺走，无声的悲鸣响彻石牢。板栗会意，遂带着他们进去雅间。　　张静初则表示，现实生活中的自己坚决不会这样，一方面，面对面的机会少了，就会忽略了身边的很多细微的东西；另一方面，吵架的事情更不会写进微博，因为“家丑不可外扬”。Methodology is pieced together one by one in this way. After a long time, it can become its own methodology if it is systematized and systematized.