凡是利用GSM模块二次开发的，不管是用来做公话，还是GPRS通信，其中短消息基本都要使用的。本文大致介绍一下短消息相关的AT命令使用方法-Any use of secondary development of the GSM module, whether it is used for public telephone, or GPRS communication, the basic message of which must be used. This general introduction about the AT commands related to SMS use