电脑屏幕的时钟屏保，内容包括画笔使用、图片插入等等，有详细的解说，适合C语言初学者-Computer screen clock screensaver, including brushes to use, insert pictures, etc., with detailed explanations, suitable for beginners in C

本程序可以复制屏幕上的内容，对于截屏等方面编程具有重要意义，值得一看！-This program can copy the contents of the screen, screen shots, etc. Programming for significance, worth a visit!

usb接口相关程序,涉及到USB接口的控制方法,数据传输等,-Usb interface programs, involves the usb interface control method, data transmission, etc.,