C++ builder 中的 XMLDocument 类详解(15) – Firstnode 和Lastnode

//---------------------------------------------------------------------------

#ifndef Unit1H
#define Unit1H
//---------------------------------------------------------------------------
#include <Classes.hpp>
#include <Controls.hpp>
#include <StdCtrls.hpp>
#include <Forms.hpp>
#include <msxmldom.hpp>
#include <XMLDoc.hpp>
#include <xmldom.hpp>
#include <XMLIntf.hpp>
//---------------------------------------------------------------------------
class TForm1 : public TForm
{
__published:	// IDE-managed Components
    TXMLDocument *XMLDocument1;
    TButton *Button1;
    void __fastcall FormCreate(TObject *Sender);
    void __fastcall Button1Click(TObject *Sender);
private:	// User declarations
public:		// User declarations
    __fastcall TForm1(TComponent* Owner);
};
//---------------------------------------------------------------------------
extern PACKAGE TForm1 *Form1;
//---------------------------------------------------------------------------
#endif

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
    : TForm(Owner)
{
}
//---------------------------------------------------------------------------


void __fastcall TForm1::FormCreate(TObject *Sender)
{
    XMLDocument1->LoadFromFile("D:\\code\\B_C_B\\XMLDocument\\test.xml");
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button1Click(TObject *Sender)
{
    _di_IXMLNodeList nodeList;
    _di_IXMLNode node;

    nodeList=XMLDocument1->DocumentElement->ChildNodes->Nodes[2]->ChildNodes;

    //当前nodelist第三个人员的节点列表

    //获得第一个结点
    node=nodeList->First();
    ShowMessage(node->NodeValue);//王五

    //获取列表中最后一个节点
    node=nodeList->Last();
    ShowMessage(node->NodeValue);

}
//---------------------------------------------------------------------------