Polygon定点画圆
...............\Debug
...............\.....\ggltools.obj
...............\.....\gpoint2i.obj
...............\.....\main.obj
...............\.....\Polygon.exe
...............\.....\Polygon.ilk
...............\.....\Polygon.pch
...............\.....\Polygon.pdb
...............\.....\vc60.idb
...............\.....\vc60.pdb
...............\ggltools.cpp
...............\ggltools.h
...............\gpoint2i.cpp
...............\gpoint2i.h
...............\main.cpp
...............\Polygon.dsp
...............\Polygon.dsw
...............\Polygon.ncb
...............\Polygon.opt
...............\Polygon.plg