欧美AV素人有码

First of all, in the idea of plane-oriented programming, the functions are divided into core business functions and peripheral functions.秦淼觉得喉咙干巴巴的，艰难地咽了下口水，用力点头。//Technical interviewThe 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 Baidu1938年，日本关东军纠集伪满军，在东北黑土地上大肆血腥侵略，抗日局势陷入困顿。共产党领导的东北抗日联军第六军举步维艰，为开辟抗日新局面，周良山军长决定秘密组建女子突击队！突击队员由各怀绝技的女战士组成。这天晚上，公孙匡在湖边的桃花林里埋伏了百来个镇军，又命几个人彻夜不眠，来往巡查。