监控计算机四个串口通信，进行设置后就可以进行串口数据的收发，自由更改，完全免费，没有用MFC的activeX控件。-The class is not intended to use as a baseclass for modemcommunication but more for driving hardware or reading hardware via the serial port. From the classes included there is only on

VS2010 MFC 串口通讯API类，自用型，推荐。-VS2010 MFC serial communications API class, self-use, recommended.