STC12C2052AD程序，包括一些相关资料：STc12c2052ad头文件、用STC12C2052A单片机制作的0-99V数字电压表源程序（参考别人的）-STC12C2052AD program, including some related information: STc12c2052ad header files, produced by STC12C2052A microcontroller digital voltmeter 0-99V source (refer others)