File list (Check if you may need any files):
KEY_CONTROL_LED(矩阵键盘)
...........................\KEY_CONTROL_LED.PWI
...........................\keil
...........................\....\key.lnp
...........................\....\key.M51
...........................\....\key.plg
...........................\....\key_Uv2.Bak
...........................\....\main.c
...........................\....\STARTUP.A51
...........................\....\STARTUP.LST
...........................\....\STARTUP.OBJ
...........................\....\key.hex
...........................\....\key.Uv2
...........................\....\key_Opt.Bak
...........................\....\main.__i
...........................\....\main.LST
...........................\....\main.OBJ
...........................\....\key
...........................\....\key.Opt
...........................\Last Loaded KEY_CONTROL_LED.DBK
...........................\KEY_CONTROL_LED.DSN