c++访问XML

bool r_flag=false;try{CoInitialize(NULL);IXMLHTTPRequestPtr xmlrequest; //定义变量xmlrequest.CreateInstance("MSXML2.XMLHTTP");xmlrequest->open(_bstr_t("POST"),_bstr_t(strUrl),_variant_t("false"));xmlrequest->setRequestHeader("Content-Type", "application/x-www-form-urlencoded");xmlrequest->send(strpostData);BSTR bstrbody;xmlrequest->get_responseText(&bstrbody);_bstr_t bstrtbody(bstrbody);CGlobalStruct::DataRecord tmpDataRecord;IXMLDOMDocumentPtr pDoc; IXMLDOMNodeListPtr pNoteList,pSecNoteList;IXMLDOMNodePtr pNode,pChildNote,pSecChildNote;HRESULT hr = pDoc.CreateInstance(__uuidof(DOMDocument)); pDoc->loadXML(bstrtbody);cout<<static_cast <char*>(pDoc->xml); pNode=pDoc->selectSingleNode("you9/status");if(!strcmp((LPCSTR)_bstr_t(pNode->text),"RESULT_00")||!strcmp((LPCSTR)_bstr_t(pNode->text),"RESULT_0")){pNode=pDoc->selectSingleNode("you9");pNoteList=pNode->GetchildNodes();*iCow=pNoteList->length-1;for(int i=1;i<pNoteList->length;i++){pChildNote=pNoteList->Getitem(i);pSecNoteList=pChildNote->GetchildNodes();*iCol=pSecNoteList->length;for(int j=0;j<pSecNoteList->length;j++){pSecChildNote=pSecNoteList->Getitem(j);sprintf(tmpDataRecord.recordfieldname,"%s",(LPCSTR)_bstr_t(pSecChildNote->GetnodeName()));tmpDataRecord.recordfieldtype=3;sprintf(tmpDataRecord.recorddata,"%s",(LPCSTR)_bstr_t(pSecChildNote->text));pVect->push_back(tmpDataRecord);}}r_flag=true;}else {sprintf(tmpDataRecord.recordfieldname,"%s","MESSAGE");tmpDataRecord.recordfieldtype=3;ReadValue((char *)_bstr_t(pNode->text),retMessage[0],256);sprintf(tmpDataRecord.recorddata,"%s",retMessage);pVect->push_back(tmpDataRecord);r_flag=false;}pNoteList.Release();pSecNoteList.Release();pNode.Release();pChildNote.Release();pSecChildNote.Release();pDoc.Release(); xmlrequest.Release();CoUninitialize();}catch (...){}return r_flag;