单片机汇编语言答:ORG 0000H LJMP MAIN ORG 0030H MAIN:MOV A,#0FEH LOOP:JB P1.0,JNB P1.0,LCALL LSD SJMP LOOP LSD:MOV P2,A LCALL DELAY CLR C RLC A CJNE A,#0,LSD MOV P2,A LCALL DELAY MOV A,#7FH LSD1:MOV P2,A LCALL DELAY SETBC RRC A CJNE A,#0FFH,LSD1 SJMP DELAY:MOV R2,#...