卫星仿真的九个程序但是放进软件无法运行，求高手指教- The simulation of the satellite nine program of the simulation program of the satellite nine but into software can not run, ask ace to give advice or comments

SIM900A程序，包括打电话、发短信、传输数据等有助于了解SIM900A模块-SIM900A procedures, including phone calls, send text messages, data transmission and other help to understand SIM900A module