利用Visual C++实现PC机与GSM短信模块串口通信-Using Visual C++ to achieve PC-Serial communication module with GSM SMS

书友会短信发送系统由基础信息模块、短信管理模块、短信投票模块、系统管理模块等几部分组成。-Book Club SMS system consists of several parts basic information module, message management module, the SMS voting module, system management modules and other components.