实验4 .....\Lab4 .....\Lab4.c .....\Lab4.hex .....\Lab4.lnp .....\Lab4.LST .....\Lab4.M51 .....\Lab4.OBJ .....\Lab4.Opt .....\Lab4.plg .....\Lab4.Uv2 .....\Lab4_Opt.Bak .....\Lab4_Uv2.Bak .....\STARTUP.A51 .....\STARTUP.LST .....\STARTUP.OBJ