PC上位机使用C#语言编程，通过该上位机可以与51单片机的串口实现通信。-PC host computer using the C# programming language, you can communicate with the microcontroller 51 via the PC serial port.

51单片机C语言实验源程序,对应与于C51初级的所有源程序,时间仓促,(51 microcontroller C language source program experiment, corresponding with the C51 primary source of all procedures, time to rush,)