复件 按键实验
.............\KEY.SRC
.............\cfg._h
.............\cfg.h
.............\key.cof
.............\key.dbg
.............\key.hex
.............\key.lk
.............\key.lst
.............\key.mak
.............\key.mp
.............\key.prj
.............\main._c
.............\main.c
.............\main.dp2
.............\main.lis
.............\main.o
.............\main.s
.............\说明._tx
.............\说明.txt