C #虚函数，抽象，接口简单的指令

Polynomial code in c++, contain differnet functions

Log4net 常用类Logger 示例源码

远端屏幕共享，获取屏幕截图并保存，值得学习(Remote screen sharing, take a screenshot and save it, it is worth learning)

MFC学习资料，mfc窗口创建程序，列表控件树控件使用程序，dll，com相关编程，绘图，序列化等程序，并附有说明(MFC learning materials, MFC window creation program, list controls the tree control procedures, DLL, COM programming, drawing, serialization and other procedures, together with a detailed description)

说明：  一份从网上获取的SX1278官方文档，手册(sx1278 office document)

说明：  直插式电阻电容封装与尺寸图解(20190725092446)(Direct-plug Resistance Capacitor Packaging and Dimension Diagram (20190725092446))

STM8S005K6硬件IIC中断方式读取SHT21。硬件测试通过亲测可用(STM8S005K6 hardware IIC interrupt reading SHT21. Hardware test by pro-test available)

单片机基础操作的方式方法，这是一个很好的程序显示(Because no matter in our work or study, fear of difficulties and lack of confidence usually make us lose the opportunity to achieve success.)

Visual C 开发实战1200例第1卷高清 完整源代码 本书是第一卷 共计602个例子。，里面有电子书和源代码，易于学习和掌握知识

sha256的签名算法，纯C实现，已验证正确，在控制台上直接运行即可，(sha256 signature algorithm, pure C implementation ，has been verified properly and can be run directly on the console.)