GSM 模块使用文档（短信息部分）-- GSM 模块与计算机之间的通信协议是一些 AT 指令集，详见（AT_v8.6.pdf）。每个指令

以 AT+开头，以回车结尾。每个命令执行成功与否都有相应的返回。其他一些非预期的信息

（如有人拨号进来、线路无信号等），模块将有对应的一些信息提示，接收端可做相应的处

理。-GSM module using the document (short information section)- GSM module and the communication protocol between computers are some of the AT command set, see (AT_v8.6.pdf). Each instruction AT+ beginning to end with a carriage. Each command has a corresponding return success. Some other unexpected information (if someone dialing in, no signal lines, etc.), the module will have some information corresponding prompts the receiving end can do the appropriate treatment.