发送短消息的程序，可以发送接收短消息。需要短信猫等硬件设备，串口通信,Send Short Message procedure, can send receive SMS. Necessary hardware such as a cat message devices, serial communication

自动检测串口上是否有通信设备，然后开启发送短信功能，vc下调试通过-Automatically detects whether there is serial communications equipment on, and then open the send message function, vc debugging through