ORG 0000H ; 改了一下试试 MAIN: MOV 50H,#8 MOV A,#0FEH MOV B,#7FH START: RR A MOV P1,A LCALL DELAY DJNZ 50H,START MOV 50H,#8 FLASH: MOV A,B RL A MOV P1,A LCALL DELAY DJNZ 50H,FLASH JMP MAIN DELAY: MOV R3,#0EFH DEL2: MOV R4,#0FFH...