7_数码管应用 ............\SM ............\sm.c ............\sm.c.bak ............\SM.hex ............\SM.lnp ............\sm.LST ............\SM.M51 ............\sm.OBJ ............\SM.Opt ............\SM.plg ............\SM.Uv2 ............\smc ............\SM_Opt.Bak ............\SM_Uv2.Bak ............\STARTUP.A51