基于qt3的简单的信息查询系统 结合了数据库 能插入 删除 查找 等操作-Qt3 based on simple information systems can be inserted into the database to find, such as the deletion operation

查询方式实现简单按键驱动程序 根据本人《Linux简单字符设备驱动编写方法》一文的步骤，用查询方式简单实现Mini2440开发板的按键驱动程序。 代码共分二个文件，驱动程序<btn_drv.c>和测试程序<btn_test.c>。-Simple ways to search for key drivers According to my "Linux character device driver writing simple method"

基于C语言和sqlite编写的一个简单学生管理系统，可以进行学生的信息查询，添加、删除和修改等等功能。-Based on the C language and sqlite written a simple student management system, student information query, add, delete and modify functions.