单片机中LED显示电路用三极管驱动电路怎么连接啊?四个数码管。_百度知...答://单片机中LED显示电路用三极管驱动电路四个数码管。可以参考一下 include<reg52.h> sbit led0=P3^2;sbit led1=P3^3;sbit led2=P3^4;sbit led3=P3^5;sbit ledd=P3^7;unsigned char code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,...