File list (Check if you may need any files):
5 IO=25key\5 IO 25按键演示.gif
..........\Thumbs.db
..........\原理图\5 IO25按键.BMP
..........\......\5 IO25按键.DSN
..........\......\Thumbs.db
..........\程序\key25
..........\....\key25.hex
..........\....\key25.lnp
..........\....\key25.M51
..........\....\key25.Opt
..........\....\key25.plg
..........\....\key25.Uv2
..........\....\key25_Opt.Bak
..........\....\key25_Uv2.Bak
..........\....\main.lst
..........\....\main.obj
..........\....\source\INTRINS.H
..........\....\......\main.c
..........\....\......\REG51.H
..........\....\source
..........\原理图
..........\程序
5 IO=25key