黄聪

论SEO对人类的重要性,请看我的博客:hcsem.com

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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); {}
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); {}
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

posted on 2010-08-27 10:58  黄聪  阅读(704)  评论(0编辑  收藏  举报