File list (Check if you may need any files):
画椭圆的切线\cv.h
............\cv.hpp
............\cv.lib
............\cv097.dll
............\cv097d.dll
............\cvaux.h
............\cvaux.hpp
............\cvaux.lib
............\cvaux097.dll
............\cvcam.h
............\cvcam.lib
............\cvcam097.dll
............\cvcompat.h
............\cvd.lib
............\cvhaartraining.lib
............\cvtypes.h
............\cxcore.h
............\cxcore.lib
............\cxcore097.dll
............\cxcore097d.dll
............\cxcored.lib
............\cxerror.h
............\cxts.lib
............\cxtsd.lib
............\cxtypes.h
............\DataType.h
............\ddraw.lib
............\Debug\BuildLog.htm
............\.....\mt.dep
............\.....\Roberts.exe
............\.....\Roberts.exe.embed.manifest
............\.....\Roberts.exe.embed.manifest.res
............\.....\Roberts.exe.intermediate.manifest
............\.....\Roberts.ilk
............\.....\roberts.obj
............\.....\Roberts.pdb
............\.....\Roberts.res
............\.....\vc60.idb
............\.....\vc60.pdb
............\.....\vc80.idb
............\.....\vc80.pdb
............\DecodeCardSdk.h
............\hcnetsdk.h
............\highgui.h
............\highgui.lib
............\highgui097.dll
............\highguid.lib
............\ml.h
............\ml.hpp
............\ml.lib
............\MSVCRTD.DLL
............\plaympeg4.h
............\quartz.dll
............\quartz.lib
............\resource.h
............\result_D4.jpg
............\Roberts.aps
............\roberts.cpp
............\Roberts.dsp
............\Roberts.dsw
............\Roberts.ncb
............\Roberts.opt
............\Roberts.plg
............\Roberts.rc
............\Roberts.sln
............\Roberts.suo
............\Roberts.vcproj
............\Roberts.vcproj.ONLINE-GSMAIN.Administrator.user
............\strmbasd.lib
............\strmiids.lib
............\trs.lib
............\trsd.lib
............\vssver2.scc
............\WinMM.Lib
............\两椭圆.bmp
............\做切线.jpg
............\Debug
画椭圆的切线