unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, xmldom, XMLIntf, msxmldom, XMLDoc, StdCtrls, OleCtrls, SHDocVw;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    XMLDocument1: TXMLDocument;
    Memo1: TMemo;             {Memo}
    WebBrowser1: TWebBrowser; {WebBrowser}
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

uses ShellAPI; {为提供 ShellExecute 函数}

//打开
procedure TForm1.FormCreate(Sender: TObject);
begin
  XMLDocument1.LoadFromFile('c:\temp\test.xml');
end;


// xml 格式化输出, 通过 Memo 显示
procedure TForm1.Button1Click(Sender: TObject);
begin
  Memo1.Lines.Text := FormatXMLData(XMLDocument1.XML.Text);
  {TXMLDocument 所在的 XMLDoc 单元给我们提供了 xml 格式化函数 FormatXMLData}
end;


//先保存修改结果, 通过 WebBrowser 会有更好的显示效果
procedure TForm1.Button2Click(Sender: TObject);
begin
  XMLDocument1.SaveToFile('c:\temp\test2.xml');
  WebBrowser1.Navigate('c:\temp\test2.xml');
end;


//先保存, 然后用外部浏览器显示, 需要 uses ShellAPI 单元
procedure TForm1.Button3Click(Sender: TObject);
begin
  XMLDocument1.SaveToFile('c:\temp\test2.xml');
  ShellExecute(Handle, 'open', 'Explorer.exe', 'c:\temp\test2.xml', nil, SW_SHOWNORMAL);
end;

end.