语音点名系统。采用ado对数据库进行添加、修改、删除、保存等操作，用Speech SDK 5.1实现语音随机点名功能。-Voice roll call system. Ado database add, modify, delete, save operation, named Speech SDK 5.1 Voice random function.

使用vc6 MFC开发的多媒体屏幕广播教学系统，其中分为教师端和学生端，实现教师端屏幕广播、学生示范、屏幕监视、远程辅导、锁定、解除锁定、电子点名、清除举手标记、远程关机，允许或禁止学生端发送消息，自动发现学生机异常或掉线等功能。-Multimedia screen teaching system using VC6 MFC development, which is divided into teachers and students realize the end end, teacher