当多个应用程序需要用到串口来传输数据，而手边没有串口线获这设备时候，可以用该程序来制作一个虚拟串口软件来代替串口设备。-When multiple applications need to use the serial port to transfer data, and do not have the serial line was this equipment when you can use the program to create a virtual serial port softw