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error LNK2005之MFC中的Lib冲突

2007-06-26 21:13:19| 分类：编程 | 标签： |举报 |字号大中小订阅

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错误输出：

nafxcwd.lib(afxmem.obj) : error LNK2005: "void * __cdecl operator new(unsigned int)" (??2@YAPAXI@Z) already defined in MSVCRTD.lib(MSVCRTD.dll)
nafxcwd.lib(afxmem.obj) : error LNK2005: "void __cdecl operator delete(void *)" (??3@YAXPAX@Z) already defined in msvcprtd.lib(delop_s.obj)
nafxcwd.lib(timecore.obj) : error LNK2001: unresolved external symbol __mbctype
nafxcwd.lib(apphelp.obj) : error LNK2001: unresolved external symbol __mbctype
nafxcwd.lib(filelist.obj) : error LNK2001: unresolved external symbol __mbctype

错误改正：

在VC6.0的Project Setting中的General选项中选择“Use MFC in a Shared DLL”，同时在C/C++选项的Code Generation中选择“Use MultiThreaded DLL”。重新编译，问题解决。

问题产生原因：具体原因还不清楚。大概是程序中使用了多线程，同时引用了VC98/MFC/Lib和VC98/Lib中的文件。

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