二叉树周游
..........\Debug
..........\.....\p5.exe
..........\.....\p5.ilk
..........\.....\p5.pdb
..........\p5
..........\p5.ncb
..........\p5.sln
..........\p5.suo
..........\..\1.cpp
..........\..\Debug
..........\..\.....\1.obj
..........\..\.....\BuildLog.htm
..........\..\.....\mt.dep
..........\..\.....\p5.exe.embed.manifest
..........\..\.....\p5.exe.embed.manifest.res
..........\..\.....\p5.exe.intermediate.manifest
..........\..\.....\vc90.idb
..........\..\.....\vc90.pdb
..........\..\p5.vcproj
..........\..\p5.vcproj.PC-201104102035.Administrator.user