File list (Check if you may need any files):
shiyan\KEIL\main
......\....\main.c
......\....\main.hex
......\....\main.lnp
......\....\main.LST
......\....\main.M51
......\....\main.OBJ
......\....\main.Opt
......\....\main.plg
......\....\main.Uv2
......\....\main_Opt.Bak
......\....\main_Uv2.Bak
......\....\STARTUP.A51
......\....\STARTUP.LST
......\....\STARTUP.OBJ
......\keil1\delay.c
......\.....\delay.h
......\.....\delay.LST
......\.....\delay.OBJ
......\.....\display.c
......\.....\display.h
......\.....\display.LST
......\.....\display.OBJ
......\.....\int0.c
......\.....\int0.h
......\.....\int0.LST
......\.....\int0.OBJ
......\.....\keypad.c
......\.....\keypad.h
......\.....\keypad.LST
......\.....\keypad.OBJ
......\.....\main
......\.....\main.c
......\.....\main.h
......\.....\main.hex
......\.....\main.lnp
......\.....\main.LST
......\.....\main.M51
......\.....\main.OBJ
......\.....\main.Opt
......\.....\main.plg
......\.....\main.Uv2
......\.....\main_Opt.Bak
......\.....\main_Uv2.Bak
......\.....\matlab.c
......\.....\matlab.h
......\.....\matlab.LST
......\.....\matlab.OBJ
......\.....\memory.c
......\.....\memory.h
......\.....\memory.LST
......\.....\memory.OBJ
......\.....\STARTUP.A51
......\.....\STARTUP.LST
......\.....\STARTUP.OBJ
......\.....\time0.c
......\.....\time0.h
......\.....\time0.LST
......\.....\time0.OBJ
......\PROTEUS\Last Loaded 时间.DBK
......\.......\时间.DSN
......\.......\时间.PWI
......\.......\带掉电记忆功能和倒计时功能的电路.png
......\KEIL
......\keil1
......\PROTEUS
shiyan