红外遥控器与51单片机答:clr p2.1 T18: CJNE A,#04h,t19 mov p0,#0ffh mov p1,#0ffh mov p2,#0ffh mov p3,#0ffh clr p2.2 T19: CJNE A,#00h,t20 mov p0,#0ffh mov p1,#0ffh mov p2,#0ffh mov p3,#0ffh clr p2.3 T20: CJNE A,#02h,t21 mov p0,#0ffh mov p1,#0ffh mov p2,#0ffh mov p3,...