看看我的问题~~~~~~~~~~`
czlvc 2003-08-19 10:59:04 e:\program files\microsoft visual studio\vc98\mfc\include\afxext.h(169) : error C2523: 'CMy::~CControlBar' : destructor tag mismatch
e:\program files\microsoft visual studio\vc98\mfc\include\afxext.h(251) : error C2504: 'CControlBar' : base class undefined
e:\program files\microsoft visual studio\vc98\mfc\include\afxext.h(344) : error C2504: 'CControlBar' : base class undefined
e:\program files\microsoft visual studio\vc98\mfc\include\afxext.h(470) : error C2504: 'CControlBar' : base class undefined
e:\program files\microsoft visual studio\vc98\mfc\include\afxext.h(508) : error C2504: 'CControlBar' : base class undefined
Error executing cl.exe.
这样的错误怎么解决~~`