vc 读取 XML文件的一个简单实例，以备查用

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//函数体代码

//参数说明：

//file：XML文件名指针

//root:XML文档根结点

//child_name:XML文档子结点
long GetXmlContent(const char* file,CString root,
  CString child_name)
{
CSockChn xml;
HRESULT hrr = CoInitialize(NULL);
    if (FAILED(hrr))
    {
        AfxMessageBox("ERROR - Could not initialize COM library");
  return -1;
    }

MSXML2::IXMLDOMDocumentPtr doc;
HRESULT hr;
hr=doc.CreateInstance(__uuidof(MSXML2::DOMDocument40));
if(FAILED(hr))
{
  AfxMessageBox("ERROR - Create Object Instance Failed!");
  return -1;
}
VARIANT_BOOL bl=doc->load(file);
if(bl==S_FALSE)
{
  AfxMessageBox("ERROR - Open XML File Failed!");
  return -1;
}
MSXML2::IXMLDOMNodePtr node;
CString nn;
nn.Format("//%s",root);
node=doc->selectSingleNode((LPCTSTR)nn);
MSXML2::DOMNodeType ntype;
node->get_nodeType(&ntype);//节点类型
CString name;
name=(char*)node->GetnodeName();//节点名称
MSXML2::IXMLDOMNamedNodeMapPtr pList=NULL;
node->get_attributes(&pList);
long count;
pList->get_length(&count);
for(int i=0;i<count;i++)//获取属性
{
  MSXML2::IXMLDOMNodePtr pNode;
  pList->get_item(i,&pNode);
  _variant_t v;
  CString n=(char*)pNode->GetnodeName();
  CString va=(char*)(_bstr_t)pNode->GetnodeTypedValue();
}
////获取子节点
MSXML2::IXMLDOMNodeListPtr nList;
CString mm;
mm.Format("//%s",child_name);
nList=node->selectNodes((LPCTSTR)mm);
long cc;
nList->get_length(&cc);
for(int i=0;i<cc;i++)
{
  CString strid="",strTitle="",strImgid="";
  MSXML2::IXMLDOMNodePtr nn=nList->item[i];
  CString n=(char*)nn->GetnodeName();
  CString va=(char*)(_bstr_t)nn->GetnodeTypedValue();

  MSXML2::IXMLDOMNamedNodeMapPtr aList=NULL;
  nn->get_attributes(&aList);
  long num;
  CString attrName,attrValue;
  aList->get_length(&num);
  for(int m=0;m<num;m++)
  {
   MSXML2::IXMLDOMNodePtr pNode;
   aList->get_item(m,&pNode);
   attrName=(char*)pNode->GetnodeName();
   attrValue=(char*)(_bstr_t)pNode->GetnodeTypedValue();
   if(attrName=="id") strid=attrValue;
   else if(attrName=="title") strTitle=attrValue;
   else if(attrName=="imgid") strImgid=attrValue;
   else ;
  }
  xml.ipaddress=va;
  xml.name=strid;
  xml.title=strTitle;
  xml.imgid=atoi(strImgid);
  sList.AddTail(xml);
}
CoUninitialize();
return cc;
/////end
}

//调用方式

GetXmlContent("he.xml","Network","Computer");

//XML文档实例

<?xml version="1.0" encoding="GB2312"?>
<Network id="zt">
　　<Computer id="xm" title="厦门地区" imgid="2000">10.206.110.54</Computer>
　　<Computer id="sx" title="山西地区" imgid="2001">10.206.110.20</Computer>
　　<Computer id="zz" title="福建直通" imgid="2002">10.236.5.224</Computer>
</Network>