PINDU（频度）
.............\1
.............\.\1.cpp
.............\.\1.dsp
.............\.\1.dsw
.............\.\1.ncb
.............\.\1.opt
.............\.\1.plg
.............\.\Debug
.............\.\.....\1.exe
.............\.\.....\1.ilk
.............\.\.....\1.pch
.............\.\.....\1.pdb
.............\.\.....\vc60.idb
.............\.\.....\vc60.pdb
.............\pindu.txt
.............\新建文本文档 (3).txt
.............\频度 算法.txt