Hotel_MIS.h文件最后加一句extern CHotel_MISApp ,可是编辑后产生了这样的错误,
这是怎么引起的呢??
RoomTypeDLG.obj : error LNK2001: unresolved external symbol "class CHotel_MISApp theApp" (?theApp@@3VCHotel_MISApp@@A)
Debug/Hotel_MIS.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.
Creating browse info file...
Hotel_MIS.exe - 2 error(s), 1 warning(s)
恳求大虾指出