利用串行口收发短信信息，程序中有较详细的注解，使用者自己参考-use serial port transceiver SMS message, procedures are more detailed explanation, the user reference

通过电脑串口接手机来发送短信。在VB6.0中有一个控件来控件串口，而这一个是利用了WINDOWS的API-computer serial port access through mobile phones to send text messages. In VB6.0 control to a serial control, and this is a use of the Windows API