自己写的一个串口通信，加实时画图软件。用的mdi窗口，数据库等-a programm for serial port and drawing,using mdi window and database

VB基于RS232串口调试工具，具备MDI动画效果的窗体,很不错的VB源码，适合VB爱好者学习研究。-VB based on the RS232 serial port debugging tool, with the form of the MDI animation, very good VB source code for VB enthusiasts learning research.