MFC程序未知错误，在ONDRAW里面。
Deleting intermediate files and output files for project 'S计算机图形学 - Win32 Debug'.
--------------------Configuration: S计算机图形学 - Win32 Debug--------------------
Compiling resources...
Compiling...
StdAfx.cpp
Compiling...
APPMODUL.CPP
C:\Program Files\Microsoft Visual Studio\VC98\MFC\SRC\APPMODUL.CPP(53) : warning C4073: initializers put in library initialization area
BreLine.cpp
BresenhamCircle.cpp
BresenhamLine.cpp
BresenhamRound.cpp
ChangingCircles.cpp
Line.cpp
LineSegment.cpp
MainFrm.cpp
RectAreaGirth.cpp
S计算机图形学.cpp
S计算机图形学Doc.cpp
S计算机图形学View.cpp
Generating Code...
Linking...
S计算机图形学View.obj : error LNK2001: unresolved external symbol "public: void __thiscall CLine::Draw(class CDC *)" (?Draw@CLine@@QAEXPAVCDC@@@Z)
S计算机图形学View.obj : error LNK2001: unresolved external symbol "public: void __thiscall CLineSegment::Draw(class CDC *)" (?Draw@CLineSegment@@QAEXPAVCDC@@@Z)
Debug/S计算机图形学.exe : fatal error LNK1120: 2 unresolved externals
执行 link.exe 时出错.

S计算机图形学.exe - 1 error(s), 0 warning(s)


[解决办法]
你的CLine类和CLineSegment类的Draw函数没有实现~
[解决办法]
求解呵呵呵呵
[解决办法]