【求助】STC12C5A60S系列单片机,实现AD采样并用数码管显示,利用AD采样...答:include<reg52.h> include <I2C.H> define PCF8591 0x90 //PCF8591 地址 //else IO sbit LS138A=P2^2;sbit LS138B=P2^3;sbit LS138C=P2^4;//此表为 LED 的字模, 共阴数码管 0-9 - unsigned char code Disp_Tab[] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x...