第四题
......\a1
......\a1.ncb
......\a1.sln
......\a1.suo
......\..\a1.cpp
......\..\a1.vcproj
......\..\a1.vcproj.WIN-IBCVVG5BO27.Administrator.user
......\..\c1.txt
......\..\c2.txt
......\..\Debug
......\..\.....\a1.exe.embed.manifest
......\..\.....\a1.exe.embed.manifest.res
......\..\.....\a1.exe.intermediate.manifest
......\..\.....\a1.obj
......\..\.....\a1.pch
......\..\.....\BuildLog.htm
......\..\.....\mt.dep
......\..\.....\stdafx.obj
......\..\.....\vc80.idb
......\..\.....\vc80.pdb
......\..\input.txt
......\..\ReadMe.txt
......\..\stdafx.cpp
......\..\stdafx.h
......\debug
......\.....\a1.exe
......\.....\a1.ilk
......\.....\a1.pdb