改程序应用在汽车油阀测试系统中，该VC程序才有VC6.0环境，内容包括数据库编程，串口通讯编程，图形界面编程等。-Change program applications in the automotive oil valve testing system, the VC program have VC6.0 environment, including programming, serial communication programming, GUI programming.

QAM的调制解调完整仿真程序,带有GUI图形界面,便于观察仿真结果,推荐初学通讯的朋友下载()