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编译报错
发表在C语言图书答疑
2014-01-12
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第20章 图书管理系统,连接不到数据库
extern _RecordsetPtr m_pRs;
m_pRs->raw_Close();
报错:
DlgBookInfo1.obj : error LNK2001: unresolved external symbol "class
_com_ptr_t<class _com_IIID<struct ADOBS::_Recordset,&struct __s_GUID
_GUID_00000556_0000_0010_8000_00aa006d2ea4> > m_pRs" (?m_pRs@@3V?
$_com_ptr_t@V?$_com_IIID@U_Recordset@ADOBS@@$1?
_GUID_00000556_0000_0010_8000_00aa006d2ea4@@3U__s_GUID@@A@@@@A)
Debug/BookManager.exe : fatal error LNK1120: 1 unresolved externals
extern _RecordsetPtr m_pRs;
m_pRs->raw_Close();
报错:
DlgBookInfo1.obj : error LNK2001: unresolved external symbol "class
_com_ptr_t<class _com_IIID<struct ADOBS::_Recordset,&struct __s_GUID
_GUID_00000556_0000_0010_8000_00aa006d2ea4> > m_pRs" (?m_pRs@@3V?
$_com_ptr_t@V?$_com_IIID@U_Recordset@ADOBS@@$1?
_GUID_00000556_0000_0010_8000_00aa006d2ea4@@3U__s_GUID@@A@@@@A)
Debug/BookManager.exe : fatal error LNK1120: 1 unresolved externals