51sd ....\SD卡 ....\....\SD_card ....\....\SD_card.M51 ....\....\SD_card.Opt ....\....\SD_card.Uv2 ....\....\SD_card.hex ....\....\SD_card.lnp ....\....\SD_card.plg ....\....\SD_card_Opt.Bak ....\....\SD_card_Uv2.Bak ....\....\Text2.LST ....\....\Text2.OBJ ....\....\Text2.c ....\....\Text2.c~ ....\....\新建文件夹