main.obj👎 error: LNK2019: 无法解析的外部符号 “__declspec(dllimport) public: __int64 __cdecl std::basic_streambuf<char,struct std::char_traits >::sputn(char const *,__int64)” (_imp?sputn@?$basi{c}_{s}treambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z)，该符号在函数 “class std::basic_ostream<char,struct std::char_traits > & __cdecl std::operator<<<struct std::char_traits >(class std::basic_ostream<char,struct std::char_traits > &,char const *)” (??$?6U?$char_traits@D@std@@@std@@YAAEAV?$basi{c}_{o}stream@DU?$char_traits@D@std@@@0@AEAV10@PEBD@Z) 中被引用
处理办法：
#ifndef GLOG_NO_ABBREVIATED_SEVERITIES
//#define GLOG_NO_ABBREVIATED_SEVERITIES
//#define GOOGLE_GLOG_DLL_DECL
#endif