一个流水灯而已,这么简单的东东,还要画流程图?ORG 0000HMAIN: MOV A,#0FEHLOOP: MOV P1,A RL A LCALL DELAY SJMP LOOPDELAY: MOV R2,#200DELAY1: MOV R3,#250 DJNZ R3,$ DJNZ R2,DELAY1 RET END