这是几年前我写的，自动识别RS485与RS232接线极性、自动动检测波特率、自动匹配协议的云台控制软件源码，只是当时我还没用C写 -This is a few years ago, I wrote, automatic identification of the RS485 and RS232 wiring polarity, auto-fixed baud rate detection, and automatic matching protocol PTZ control softwar