运用MSComm控件进行的串口编程实例，提供一种简单的串口操作方法。-MSComm controls the use of serial programming examples, provide a simple serial method of operation.

串口通信程序，用于实现串口发送与接收功能。-Serial communication program for Serial Port to send and receive functions.

本例利用MSCOMM控件，通过串口发送AT指令来操作MODEM,使两台计算机通过公用电话网进行数据传送-This case, use the MSComm control through the serial port to send AT commands to operate MODEM, two computers for data transmission via the public telephone network