萌新跪求帮助解决无法解析的外部符号问题
错误 1 error LNK2019: 无法解析的外部符号 "public: __thiscall book::book(class std::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> >,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >,double,int,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >)" (??0book@@QAE@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@00NH0@Z),该符号在函数 "public: void __thiscall book::`default constructor closure'(void)" (??_Fbook@@QAEXXZ) 中被引用 E:\程序设计草稿纸\草稿纸\ConsoleApplication8\ConsoleApplication8\main.obj ConsoleApplication8