多功能流水灯程序 MOV R7,#02H LOOP: MOV SBUF,#01111111B ACALL DELAY MOV SBUF,#10111111B ACALL DELAY MOV SBUF,#11011111B ACALL DELAY MOV SBUF,#11101111B ACALL DELAY MOV SBUF,#11110111B ACALL D