File list (Check if you may need any files):
第一天
......\lesson 1
......\........\Last Loaded lesson2.DBK
......\........\lesson2.DBK
......\........\lesson2.PWI
......\........\STARTUP.A51
......\........\STARTUP.LST
......\........\STARTUP.OBJ
......\........\例程
......\........\例程.c
......\........\例程.DSN
......\........\例程.hex
......\........\例程.lnp
......\........\例程.LST
......\........\例程.M51
......\........\例程.OBJ
......\........\例程.Opt
......\........\例程.plg
......\........\例程.PWI
......\........\例程.SDI
......\........\例程.Uv2
......\........\例程_Opt.Bak
......\........\例程_Uv2.Bak
第七天
......\Last Loaded lesson 5_3.DBK
......\lesson 5_3.DBK
......\lesson 5_3.PWI
......\lesson 7
......\lesson 7.c
......\lesson 7.hex
......\lesson 7.lnp
......\lesson 7.LST
......\lesson 7.M51
......\lesson 7.OBJ
......\lesson 7.Opt
......\lesson 7.plg
......\lesson 7.Uv2
......\lesson 7_Opt.Bak
......\lesson 7_Uv2.Bak
......\lesson TXD.c
......\lesson TXD.LST
......\lesson TXD.OBJ
......\lesson7 RXD
......\lesson7 RXD.hex
......\lesson7 RXD.lnp
......\lesson7 RXD.M51
......\lesson7 RXD.Opt
......\lesson7 RXD.plg
......\lesson7 RXD.Uv2
......\lesson7 RXD_Opt.Bak
......\lesson7 RXD_Uv2.Bak
......\STARTUP.A51
......\STARTUP.LST
......\STARTUP.OBJ
第三天
......\lesson 3_1
......\..........\Last Loaded lesson 3_1.DBK
......\..........\lesson 3_1
......\..........\lesson 3_1.c
......\..........\lesson 3_1.DSN
......\..........\lesson 3_1.hex
......\..........\lesson 3_1.lnp
......\..........\lesson 3_1.LST
......\..........\lesson 3_1.M51
......\..........\lesson 3_1.OBJ
......\..........\lesson 3_1.Opt
......\..........\lesson 3_1.plg
......\..........\lesson 3_1.PWI
......\..........\lesson 3_1.Uv2
......\..........\lesson 3_1_Uv2.Bak
......\..........\STARTUP.A51
......\..........\STARTUP.LST
......\..........\STARTUP.OBJ
......\lesson 3_2
......\..........\Last Loaded Last Loaded lesson 3_2.DBK
......\..........\Last Loaded lesson 3_2.DBK
......\..........\Last Loaded lesson 3_2.PWI
......\..........\lesson 3_2
......\..........\lesson 3_2.c
......\..........\lesson 3_2.hex
......\..........\lesson 3_2.lnp
......\..........\lesson 3_2.LST
......\..........\lesson 3_2.M51
......\..........\lesson 3_2.OBJ
......\..........\lesson 3_2.Opt
......\..........\lesson 3_2.plg
......\..........\lesson 3_2.Uv2
......\..........\lesson 3_2_Opt.Bak
......\..........\lesson 3_2_Uv2.Bak
......\..........\STARTUP.A51
......\..........\STARTUP.LST
......\..........\STARTUP.OBJ
......\lesson 3_3
......\..........\Last Loaded Last Loaded lesson 3_3.DBK
......\..........\Last Loaded lesson 3_3.DBK
......\..........\Last Loaded lesson 3_3.PWI
......\..........\lesson 3_3
......\..........\lesson 3_3.c
......\..........\lesson 3_3.hex
......\..........\lesson 3_3.lnp