4.二叉树
........\Bitree.cpp
........\Bitree.dsp
........\Bitree.dsw
........\Bitree.h
........\Bitree.ncb
........\Bitree.opt
........\Bitree.plg
........\c.h
........\Debug
........\.....\Bitree.exe
........\.....\Bitree.ilk
........\.....\Bitree.obj
........\.....\Bitree.pch
........\.....\Bitree.pdb
........\.....\main.obj
........\.....\SqStack.obj
........\.....\vc60.idb
........\.....\vc60.pdb
........\main.cpp
........\SqStack.cpp
........\SqStack.h