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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; procedure FormCreate(Sender: TObject); procedure Button1Click(Sender: TObject); procedure Button2Click(Sender: TObject); procedure Button3Click(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('test.xml'); end; //获取根目录下的元素数(1) procedure TForm1.Button1Click(Sender: TObject); begin ShowMessage(IntToStr(XMLDocument1.DocumentElement.ChildNodes.Count)); {4} {DocumentElement 是根节点} {ChildNodes 是节点包含的子节点的列表} end; //获取根目录下的元素数(2) procedure TForm1.Button2Click(Sender: TObject); var nodeList: IXMLNodeList; {定义一个节点列表对象} begin nodeList := XMLDocument1.DocumentElement.ChildNodes; {把根节点下的子节点列表赋给节点列表对象} ShowMessage(IntToStr(nodeList.Count)); {4} end; //获取根目录下的元素数(3) procedure TForm1.Button3Click(Sender: TObject); var node: IXMLNode; {定义一个节点对象} nodeList: IXMLNodeList; {定义一个节点列表对象} begin node := XMLDocument1.DocumentElement; {根节点也是一个节点, 把它赋给节点对象} nodeList := node.ChildNodes; ShowMessage(IntToStr(nodeList.Count)); {4} end; end. ----------------------------------------------------------------------------------------------------------------------------------------------- 出处:http://www.cnblogs.com/del/archive/2008/01/03/1024407.html |
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