单片机 用51单片机显示一个数码管轮流显示9到0再从0到9每隔一秒出现一 ...答:LOOP1:MOV A,20H; 9-0 MOVC A,@A+DPTR MOV P0,A DEC 20H CALL DELL;YANSHI DJNZ R0,LOOP1 MOV 20H,#0;0-9 MOV R0,#10 LOOP2:MOV A,20H; 0-9 MOVC A,@A+DPTR MOV P0,A INC 20H CALL DELL;YANSHI DJNZ R0,LOOP2 AJMP LOP TAB:DB 0C0H,0F9H,0A4H,0B0H,99H,92H,82H,...