http://bbs.csdn.net/topics/390601634
CString CMyDB::VariantToString(const _variant_t &var){ CString strValue; switch (var.vt) { case VT_BSTR://字符串 case VT_LPSTR://字符串 case VT_LPWSTR://字符串 strValue = (LPCTSTR)(_bstr_t)var; break; case VT_I1: case VT_UI1: strValue.Format("%d", var.bVal); break; case VT_I2://短整型 strValue.Format("%d", var.iVal); break; case VT_UI2://无符号短整型 strValue.Format("%d", var.uiVal); break; case VT_INT://整型 strValue.Format("%d", var.intVal); break; case VT_I4: //整型 strValue.Format("%d", var.lVal); break; case VT_I8: //长整型 strValue.Format("%d", var.lVal); break; case VT_UINT://无符号整型 strValue.Format("%d", var.uintVal); break; case VT_UI4: //无符号整型 strValue.Format("%d", var.ulVal); break; case VT_UI8: //无符号长整型 strValue.Format("%d", var.ulVal); break; case VT_VOID: strValue.Format("%8x", var.byref); break; case VT_R4://浮点型 strValue.Format("%.4f", var.fltVal); break; case VT_R8://双精度型 strValue.Format("%.8f", var.dblVal); break; case VT_DECIMAL: //小数 strValue.Format("%.8f", (double)var); break; case VT_CY: { COleCurrency cy = var.cyVal; strValue = cy.Format(); } break; case VT_BLOB: case VT_BLOB_OBJECT: case 0x2011: strValue = "[BLOB]"; break; case VT_BOOL://布尔型 strValue = var.boolVal ? "TRUE" : "FALSE"; break; case VT_DATE: //日期型 { DATE dt = var.date; COleDateTime da = COleDateTime(dt); strValue = da.Format("%Y-%m-%d %H:%M:%S"); } break; case VT_NULL://NULL值 strValue = ""; break; case VT_EMPTY://空 strValue = ""; break; case VT_UNKNOWN://未知类型 default: strValue = "UN_KNOW"; break; } return strValue;}CString xinghao;//access 表字段CString lujing;//access表字段xinghao=VariantToString(m_pRecordset->GetCollect("xinghao"));//获取字段存在xinghao变量中lujing=VariantToString(m_pRecordset->GetCollect("lujing"));//获取字段存在xinghao变量中//直接显示 不用m_Edit 了GetDlgItem(IDC_EDIT3)->SetWindowText(xinghao);