VC++写的系统屏幕保护程序，适合初学者学习，程序启动有动画-VC++ to write a screen saver system, suitable for beginners to learn, the program starts with the animation

用c编写的屏幕保护系统，具有一定的技术含量，对于c的学习有很大的帮助-C prepared by screen protection system, with certain technical content, for c is very helpful in learning

雷达系统设计MATLAB仿真一书里的第五章所有的程序，对于学习非常有用。-Radar system design MATLAB simulation in the fifth chapter of the book, all the procedures, very useful for learning.