VC对于XML的解析以及操作

XML的查找
#include <stdio.h>
#include <iostream>
#import <msxml4.dll>
#include <string>
using namespace std;
void Travel(MSXML2::IXMLDOMNodePtr pDOMNode)
{
 if (pDOMNode->GetnodeTypeString()==(_bstr_t)"element") // 获取节点类型
 {
  printf("%s: ", (char*)pDOMNode->GetnodeName()); // 获取节点标签名称
  printf("%s ", (char*)(_bstr_t)pDOMNode->GetnodeTypedValue()); // 获取节点值
  MSXML2::IXMLDOMNamedNodeMapPtr pDOMAttrList=pDOMNode->Getattributes(); // 获取节点属性列表
  long nLen=pDOMAttrList->Getlength();
  for (int j=0; j<nLen; j++)
  {
   MSXML2::IXMLDOMNodePtr pDOMAttr=pDOMAttrList->Getitem(j); // 获取指定属性
   printf("%s=", (char*)pDOMAttr->GetnodeName()); // 获取属性名称
   printf("%s", (char*)(_bstr_t)pDOMAttr->GetnodeTypedValue()); // 获取属性值
  }
  printf("\n");
//  IXMLDOMNodeListPtr
//pDOMNode->GetchildNodes();
  for (MSXML2::IXMLDOMNodePtr pDOMChild=pDOMNode->GetfirstChild()
   ; pDOMChild!=NULL
   ; pDOMChild=pDOMChild->GetnextSibling())
   Travel(pDOMChild);
 }
}
int main(int argc, char *argv[])
{
 CoInitialize(NULL); // 初始化COM环境
// atexit(Exit);
 MSXML2::IXMLDOMDocumentPtr pDOMDoc;
 pDOMDoc.CreateInstance(__uuidof(MSXML2::DOMDocument40)); // 创建XMLDOMDocument对象
 pDOMDoc->load("e:\\reg.xml"); // 加载XML文档
 MSXML2::IXMLDOMNodeListPtr pDOMNodeList=pDOMDoc->getElementsByTagName("List"); // 根据标签获得节点列表
 long nCnt=pDOMNodeList->Getlength();
 for (int i=0; i<nCnt; i++)
 {
  MSXML2::IXMLDOMNodePtr pDOMNode=pDOMNodeList->Getitem(i); // 获取指定节点
//pDOMNodeList=pDOMNode->GetchildNodes();
//cout<<pDOMNodeList->Getlength();
  Travel(pDOMNode);