ADO问题，两天未解决，请高手指教！！！

m_pRs = m_pCnn->Execute((_bstr_t)SQLStr, NULL, adCmdText);用
pCon->Open(_bstr_t(connStr),"","",adConnectUnspecified);
pSet->PutCursorLocation(adUseClient);
pSet->PutRefActiveConnection(pCon);
pSet->Open((_bstr_t)sql,
   _variant_t(DISP_E_PARAMNOTFOUND, VT_ERROR),
    adOpenStatic,
adLockBatchOptimistic,
    adCmdText);
pSet->PutRefActiveConnection(NULL);