大一时学c语言时做的一个基于turbo-c图形库的学生管理系统（非文本图形方式），应该说当时花了不少心血。功能方面实现：调色（对8个默认的调色板的值进行更改），换肤（改界面颜色），时间，文件加密（用了类似转子加密的方法），快捷键，错误提示，分页等，注释比较详细，供初学c语言的人参考。需要将egavga.obj文件link起来才能脱离turbo-c环境执行，网上能找到相关教程。-Big time learning c language to do a turbo-c-based graphics library student management system (non-text graphics mode), it should be said that time spent a lot of effort. Functions to achieve: color (for 8 the value of the default color palette to make changes), skin (change the interface colors), time, file encryption (with a similar rotor encryption methods), keyboard shortcuts, error message, sub- page and so on, the Notes in more detail for the beginner c language reference. Egavga.obj documents need to link up our way out of turbo-c environmental performance, on-line to find the relevant tutorial.