fft\1.txt
...\2.txt
...\5-7-1.txt
...\5-7-20.xls
...\data.txt
...\Debug\fft.exe
...\.....\fft.ilk
...\.....\fft.obj
...\.....\fft.pch
...\.....\fft.pdb
...\.....\vc60.idb
...\.....\vc60.pdb
...\fft - 副本.c
...\fft.c
...\fft.dsp
...\fft.dsw
...\fft.ncb
...\fft.opt
...\fft.plg
...\Debug
fft