这个是用高级语言VB6.0编写串口通信的源码，也是很管用。若看懂的话，可以进行适当的修改，就可以适应各种场合的通信了。-This is written in high-level language VB6.0 source of serial communication, is also very useful. If to read it, you can make the appropriate changes, communication can be adapted to a variety of occasions.