这里有比较全面封装好的串口通信的类库信息，里面包含三个VC++工程，从不同的方向去实现通信-There are more comprehensive package of a good serial communication library of information, which consists of three VC++ projects, from different directions to achieve communication

VC++6.0 用API写的串口调试工具，可以收发数据 -VC++6.0 using the API to write the serial port debugging tool, you can send and receive data