vb编写的读条形码机的简单程序,附带设计录像,适合初学者学习用

两种秒表的C语言源代码及相应的教学录像，对初学者很有帮助的-Two stopwatch C language source code and the corresponding teaching videos, useful for beginners.

视频监控系统主要实现以下功能：视频监控。云台控制。快照和录像。录像回放。定时自动监控。监控管理及日志-Video surveillance systems to achieve the following functions: video surveillance. PTZ control. Snapshots and video. Video playback. Time automatic monitoring. Monitoring and management, and log