寻找角点
........\corner.cpp
........\corner.dsp
........\corner.dsw
........\corner.ncb
........\corner.opt
........\corner.plg
........\Debug
........\.....\corner.exe
........\.....\corner.ilk
........\.....\corner.obj
........\.....\corner.pch
........\.....\corner.pdb

........\.....\vc60.idb
........\.....\vc60.pdb
........\Makefile