今天写代码的时候用到同学写的一个LIB库，编译后链接后出现一堆错误。都是link error2005。平时链接错误一下子就搞定了，今天怎么弄也还是老样子。写程序最怕的就是碰到这种问题了。
本来同学负责写的那个LIB，一开始没有用STL的，这次为了一个新功能，用了VECTOR。而我写的主程序很早就开始用STL了。以前编译链接都没有问题的，但是今天不知道怎么回事。我还以为是因为STL冲突的原因呢。
没有办法，只好在网络上搜寻，尝试各种办法。最后终于在互联网的一个角落里找到了原因。
说是因为 Project->C/C++->Code Generation->Runtime Library 这个选项，LIB和主程序（EXE）里选择的不一致引起的。后来改成一样就好了。
链接错误大致是这样的。
1>Compiling resources...
1>Compiling manifest to resources...
1>Linking...
1>xultool.lib(psdparser.obj) : error LNK2005: "public: __thiscall std::_Container_base::~_Container_base(void)" (??1_Container_base@std@@QAE@XZ) already defined in msvcprtd.lib(MSVCP80D.dll)
1>xultool.lib(psdparser.obj) : error LNK2005: "public: void __thiscall std::_Container_base::_Orphan_all(void)const " (?_Orphan_all@_Container_base@std@@QBEXXZ) already defined in msvcprtd.lib(MSVCP80D.dll)
1>xultool.lib(psdparser.obj) : error LNK2005: "public: __thiscall std::_Container_base::_Container_base(void)" (??0_Container_base@std@@QAE@XZ) already defined in msvcprtd.lib(MSVCP80D.dll)
1>xultool.lib(psdparser.obj) : error LNK2005: "public: __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (??0?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAE@ABV01@@Z) already defined in msvcprtd.lib(MSVCP80D.dll)
1>xultool.lib(psdparser.obj) : error LNK2005: "public: __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::~basic_string<char,struct std::char_traits<char>,class std::allocator<char> >(void)" (??1?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAE@XZ) already defined in msvcprtd.lib(MSVCP80D.dll)
1>xultool.lib(psdparser.obj) : error LNK2005: "public: char const * __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::c_str(void)const " (?c_str@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEPBDXZ) already defined in msvcprtd.lib(MSVCP80D.dll)
1>xultool.lib(psdparser.obj) : error LNK2005: "public: __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >(char const *)" (??0?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAE@PBD@Z) already defined in msvcprtd.lib(MSVCP80D.dll)
1>libcpmtd.lib(string.obj) : error LNK2005: "public: __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >(char const *)" (??0?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAE@PBD@Z) already defined in msvcprtd.lib(MSVCP80D.dll)
1>libcpmtd.lib(string.obj) : error LNK2005: "public: __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (??0?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAE@ABV01@@Z) already defined in msvcprtd.lib(MSVCP80D.dll)
1>libcpmtd.lib(string.obj) : error LNK2005: "public: __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::~basic_string<char,struct std::char_traits<char>,class std::allocator<char> >(void)" (??1?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QAE@XZ) already defined in msvcprtd.lib(MSVCP80D.dll)
1>libcpmtd.lib(string.obj) : error LNK2005: "public: char const * __thiscall std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::c_str(void)const " (?c_str@?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@QBEPBDXZ) already defined in msvcprtd.lib(MSVCP80D.dll)
1>libcpmtd.lib(string.obj) : error LNK2005: "public: __thiscall std::_Container_base::~_Container_base(void)" (??1_Container_base@std@@QAE@XZ) already defined in msvcprtd.lib(MSVCP80D.dll)
1>libcpmtd.lib(string.obj) : error LNK2005: "public: void __thiscall std::_Container_base::_Orphan_all(void)const " (?_Orphan_all@_Container_base@std@@QBEXXZ) already defined in msvcprtd.lib(MSVCP80D.dll)
1>libcpmtd.lib(string.obj) : error LNK2005: "public: __thiscall std::_Container_base::_Container_base(void)" (??0_Container_base@std@@QAE@XZ) already defined in msvcprtd.lib(MSVCP80D.dll)