球体画法 ........\Ball.cpp ........\Ball.dsp ........\Ball.dsw ........\Ball.ncb ........\Ball.opt ........\Ball.plg ........\Debug ........\.....\Ball.exe ........\.....\Ball.ilk ........\.....\Ball.obj ........\.....\Ball.pch ........\.....\Ball.pdb ........\.....\StdAfx.obj ........\.....\vc60.idb ........\.....\vc60.pdb ........\StdAfx.cpp ........\StdAfx.h