黄聪：Delphi 中的 XMLDocument 类详解，5 - 获取元素内容

unit Unit1;

interface

uses

Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

Dialogs, xmldom, XMLIntf, msxmldom, XMLDoc, StdCtrls;

type

TForm1 = class(TForm)

XMLDocument1: TXMLDocument;

Button1: TButton;

Button2: TButton;

Button3: TButton;

Button4: TButton;

procedure FormCreate(Sender: TObject);

procedure Button1Click(Sender: TObject);

procedure Button2Click(Sender: TObject);

procedure Button3Click(Sender: TObject);

procedure Button4Click(Sender: TObject);

private

{ Private declarations }

public

{ Public declarations }

end;

var

Form1: TForm1;

implementation

{$R *.dfm}

//打开

procedure TForm1.FormCreate(Sender: TObject);

begin

XMLDocument1.LoadFromFile('c:\temp\test.xml');

{必须用万一提供的 xml 测试文件, 才能有相同的返回值}

end;

//访问第一个人的信息

procedure TForm1.Button1Click(Sender: TObject);

begin

ShowMessage(XMLDocument1.DocumentElement.ChildNodes[0].ChildNodes['姓名'].Text); {张三}

ShowMessage(XMLDocument1.DocumentElement.ChildNodes[0].ChildNodes['性别'].Text); {男}

ShowMessage(XMLDocument1.DocumentElement.ChildNodes[0].ChildNodes['年龄'].Text); {34}

{可以通过位置访问子节点, 如: ChildNodes[0] 表示子节点列表中的第一个元素}

{可以通过子节点名访问子节点, 如: ChildNodes['姓名']}

{但在节点名一样的情况下, 只能通过位置访问}

{任何情况下都可以通过位置访问, 譬如:}

ShowMessage(XMLDocument1.DocumentElement.ChildNodes[0].ChildNodes[0].Text); {张三}

end;

//访问第二个人的信息

procedure TForm1.Button2Click(Sender: TObject);

var

nodeList: IXMLNodeList;

node: IXMLNode;

begin

nodeList := XMLDocument1.DocumentElement.ChildNodes;

node := nodeList[1];

ShowMessage(node.ChildNodes['姓名'].Text); {李四}

ShowMessage(node.ChildNodes['性别'].Text); {女}

ShowMessage(node.ChildNodes['年龄'].Text); {43}

end;

//获取所有成员姓名

procedure TForm1.Button3Click(Sender: TObject);

var

nodeList: IXMLNodeList;

node: IXMLNode;

num,i: Integer;

begin

nodeList := XMLDocument1.DocumentElement.ChildNodes;

num := nodeList.Count;

for i := 0 to num - 1 do

begin

node := nodeList[i];

ShowMessage(node.ChildNodes['姓名'].Text); {会分别显示: 张三 李四 王五 孙六}

end;

end;

//获取所有成员年龄

procedure TForm1.Button4Click(Sender: TObject);

var

nodeList: IXMLNodeList;

node: IXMLNode;

num,i: Integer;

begin

nodeList := XMLDocument1.DocumentElement.ChildNodes;

num := nodeList.Count;

for i := 0 to num - 1 do

begin

node := nodeList[i];

ShowMessage(node.ChildValues['年龄']); {会分别显示: 34 43 25 52}

end;

end;

end.

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出处:http://www.cnblogs.com/del/archive/2008/01/03/1024489.html