IO口扩展\as ........\as.hex ........\as.lnp ........\as.M51 ........\as.Opt ........\as.plg ........\as.Uv2 ........\as_Opt.Bak ........\as_Uv2.Bak ........\IO口扩展.DSN ........\IO口扩展.PWI ........\Last Loaded IO口扩展.DBK ........\STARTUP.A51 ........\STARTUP.LST ........\STARTUP.OBJ ........\Text1.c ........\Text1.LST ........\Text1.OBJ IO口扩展