delphi 一个关于xml文件导入数据库的问题

function LoadXml(shortPath:string;var xmlobj: IXMLDOMDocument):boolean;

var tmpXml:IXMLDOMDOCUMENT;

begin

   shortPath:=localPath+shortPath;

   if not FileExists(shortPath) then

     begin

      LoadXml:=false;

      exit;

     end;

   tmpxml := CreateOLEObject('Microsoft.XmlDom') as IXMLDOMDocument;

   tmpxml.async := false;

   tmpxml.load(shortPath);

   if tmpxml.parseError.errorCode <>  then

     begin

       LoadXml:=false;

       Exit;

     end;

   xmlobj:=tmpxml;

   tmpxml:=nil;

   Loadxml:=true;

end;

procedure InitNetInfo(var theNet:netInfoType);

var objxml:IxmlDomdocument;

    Node1:IxmlDomNode;

begin

if not Loadxml(iniFile,objXml) then exit;

Node1:=objXml.selectSingleNode('//DefaultIP');

if Node1<>nil then theNet.Csdn_IP:=Node1.text;

Node1:=objXml.selectSingleNode('//DefaultPath');

if Node1<>nil then theNet.Csdn_Path:=Node1.text;

Node1:=objXml.selectSingleNode('//UseProxy');

if Node1<>nil then theNet.flg_UseProxy:=StrtoBool(Node1.text);

Node1:=objXml.selectSingleNode('//ProxyIP');

if Node1<>nil then theNet.prx_IP:=Node1.text;

Node1:=objXml.selectSingleNode('//ProxyPort');

if Node1<>nil then theNet.prx_Port:=Node1.text;

Node1:=objXml.selectSingleNode('//ProxyUser');

if Node1<>nil then theNet.prx_User:=Node1.text;

Node1:=objXml.selectSingleNode('//ProxyPass');

if Node1<>nil then theNet.prx_Pass:=Node1.text;

//其他信息

Node1:=objXml.selectSingleNode('//HeadSize');

if Node1<>nil then HeadSize:=strtoint(Node1.text);

Node1:=objXml.selectSingleNode('//TopicSize');

if Node1<>nil then TopicSize:=strtoint(Node1.text);

objxml:=nil;

Node1:=nil;

end;