用C#,VB和SQLSERVER编写的远程教学程序，包括文件上传，音视频点播，论坛，文件管理等功能，已在实际单位中运行，附带数据库文件，有完整的存储过程，另编写了自定义页面控件-C#, VB and SQLSERVER prepared by the long-distance teaching procedures, including file upload, audio and video-on-demand, the Forum, document management and oth