注意在切换编写API与MFC程序时是与将Microsoft Foundation Classes修改回来否则产生错误：-优快云博客

本文记录了在Windows应用程序开发过程中遇到的LNK2001未解析外部符号错误，并详细列出了多个未解析的符号实例。通过分析这些错误，本文旨在帮助开发者理解这些错误产生的原因及可能的解决方案。

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--------------------Configuration: HelloWindows - Win32 Debug--------------------
Linking...
test.obj : error LNK2001: unresolved external symbol __imp__DispatchMessageA@4
test.obj : error LNK2001: unresolved external symbol __imp__TranslateMessage@4
test.obj : error LNK2001: unresolved external symbol __imp__GetMessageA@16
test.obj : error LNK2001: unresolved external symbol __imp__UpdateWindow@4
test.obj : error LNK2001: unresolved external symbol __imp__ShowWindow@8
test.obj : error LNK2001: unresolved external symbol __imp__CreateWindowExA@48
test.obj : error LNK2001: unresolved external symbol __imp__RegisterClassA@4
test.obj : error LNK2001: unresolved external symbol __imp__GetStockObject@4
test.obj : error LNK2001: unresolved external symbol __imp__DefWindowProcA@16
test.obj : error LNK2001: unresolved external symbol __imp__EndPaint@8
test.obj : error LNK2001: unresolved external symbol __imp__TextOutA@20
test.obj : error LNK2001: unresolved external symbol __imp__BeginPaint@8
test.obj : error LNK2001: unresolved external symbol __imp__GetDC@4
test.obj : error LNK2001: unresolved external symbol __imp__PostQuitMessage@4
test.obj : error LNK2001: unresolved external symbol __imp__DestroyWindow@4
test.obj : error LNK2001: unresolved external symbol __imp__MessageBoxA@16
Debug/HelloWindows.exe : fatal error LNK1120: 16 unresolved externals
Error executing link.exe.