例1-点亮一个LED灯\LED.asm .................\LED.LST .................\LED.OBJ .................\lhj.hex .................\lhj.lnp .................\lhj.M51 .................\lhj.Opt .................\lhj.plg .................\lhj.Uv2 .................\lhj_Opt.Bak .................\lhj_Uv2.Bak .................\ZY.__i 例1-点亮一个LED灯