[NativeXml (6)：添加节点]

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uses NativeXml; 
 
procedure TForm1.Button1Click(Sender: TObject); 
var 
  xml: TNativeXml; 
  node: TXmlNode; 
begin 
  xml := TNativeXml.CreateName('List'); 
  xml.XmlFormat := xfReadable; 
 
  // 
  node := xml.Root.NodeNew('item'); 
  node.Value := '张三'; 
  // 
  with xml.Root.NodeNew('item') do 
  begin 
    Value := '李四'; 
  end; 
  // 
  xml.Root.NodeNew('item').Value := '王五'; 
 
  Memo1.Text := xml.WriteToString; 
  xml.Free; 
end; 
{*************************************** 
<?xml version="1.0" encoding="UTF-8"?> 
<List> 
    <item>张三</item> 
    <item>李四</item> 
    <item>王五</item> 
</List> 
*****************************************} 
 
procedure TForm1.Button2Click(Sender: TObject); 
var 
  xml: TNativeXml; 
begin 
  xml := TNativeXml.CreateName('List'); 
  xml.XmlFormat := xfReadable; 
 
  xml.Root.WriteString('N1', '张三'); 
  xml.Root.WriteString('N2', '李四'); 
  xml.Root.WriteString('N2', '王五'); 
 
  Memo1.Text := xml.WriteToString; 
  xml.Free; 
end; 
{*************************************** 
<?xml version="1.0" encoding="UTF-8"?> 
<List> 
    <N1>张三</N1> 
    <N2>王五</N2> 
</List> 
*****************************************} 
 
procedure TForm1.Button3Click(Sender: TObject); 
var 
  xml: TNativeXml; 
begin 
  xml := TNativeXml.CreateName('List'); 
  xml.XmlFormat := xfReadable; 
 
  xml.Root.NodeNew('item').WriteString('name', '张三'); 
  xml.Root.NodeNew('item').WriteString('name', '李四'); 
  xml.Root.NodeNew('item').WriteString('name', '王五'); 
 
  Memo1.Text := xml.WriteToString; 
  xml.Free; 
end; 
{*************************************** 
<?xml version="1.0" encoding="UTF-8"?> 
<List> 
    <item> 
        <name>张三</name> 
    </item> 
    <item> 
        <name>李四</name> 
    </item> 
    <item> 
        <name>王五</name> 
    </item> 
</List> 
*****************************************} 
 
procedure TForm1.Button4Click(Sender: TObject); 
var 
  xml: TNativeXml; 
begin 
  xml := TNativeXml.CreateName('List'); 
  xml.XmlFormat := xfReadable; 
 
  with xml.Root.NodeNew('item') do 
  begin 
    WriteString('name', '张三'); 
    WriteInteger('age', 11); 
  end; 
 
  with xml.Root.NodeNew('item') do 
  begin 
    WriteString('name', '李四'); 
    WriteInteger('age', 22);    //WriteFloat()、WriteDateTime()、WriteHex()、WriteBool()... 
  end; 
 
  with xml.Root.NodeNew('item') do 
  begin 
    WriteString('name', '王五'); 
    WriteInteger('age', 33); 
  end; 
 
  Memo1.Text := xml.WriteToString; 
  xml.Free; 
end; 
{*************************************** 
<?xml version="1.0" encoding="UTF-8"?> 
<List> 
    <item> 
        <name>张三</name> 
        <age>11</age> 
    </item> 
    <item> 
        <name>李四</name> 
        <age>22</age> 
    </item> 
    <item> 
        <name>王五</name> 
        <age>33</age> 
    </item> 
</List> 
*****************************************} 
 
procedure TForm1.Button5Click(Sender: TObject); 
var 
  xml: TNativeXml; 
begin 
  xml := TNativeXml.CreateName('List'); 
  xml.XmlFormat := xfReadable; 
 
  with xml.Root.NodeNewAtIndex(0, 'item') do 
  begin 
    WriteString('name', '张三'); 
    WriteInteger('age', 11); 
  end; 
 
  with xml.Root.NodeNewAtIndex(0, 'item') do 
  begin 
    WriteString('name', '李四'); 
    WriteInteger('age', 22); 
  end; 
 
  with xml.Root.NodeNewAtIndex(0, 'item') do 
  begin 
    WriteString('name', '王五'); 
    WriteInteger('age', 33); 
  end; 
 
  Memo1.Text := xml.WriteToString; 
  xml.Free; 
end; 
{*************************************** 
<?xml version="1.0" encoding="UTF-8"?> 
<List> 
    <item> 
        <name>王五</name> 
        <age>33</age> 
    </item> 
    <item> 
        <name>李四</name> 
        <age>22</age> 
    </item> 
    <item> 
        <name>张三</name> 
        <age>11</age> 
    </item> 
</List> 
*****************************************} 
 
procedure TForm1.Button6Click(Sender: TObject); 
var 
  xml: TNativeXml; 
  node: TXmlNode; 
begin 
  xml := TNativeXml.CreateName('List'); 
  xml.XmlFormat := xfReadable; 
 
  node := xml.NodeNew('item'); 
  node.WriteString('name', '张三'); 
  node.WriteInteger('age', 11); 
  xml.Root.NodeAdd(node); 
 
  xml.NodeNewEx('item', node);      //NodeNewEx 
  node.WriteString('name', '李四'); 
  node.WriteInteger('age', 22); 
  xml.Root.NodeAdd(node); 
 
  node := xml.NodeNew('item'); 
  node.WriteString('name', '王五'); 
  node.WriteInteger('age', 33); 
  xml.Root.NodeAdd(node); 
 
  Memo1.Text := xml.WriteToString; 
  xml.Free; 
end; 
{*************************************** 
<?xml version="1.0" encoding="UTF-8"?> 
<List> 
    <item> 
        <name>张三</name> 
        <age>11</age> 
    </item> 
    <item> 
        <name>李四</name> 
        <age>22</age> 
    </item> 
    <item> 
        <name>王五</name> 
        <age>33</age> 
    </item> 
</List> 
*****************************************} 
 
procedure TForm1.Button7Click(Sender: TObject); 
var 
  xml: TNativeXml; 
  node: TXmlNode; 
begin 
  xml := TNativeXml.CreateName('List'); 
  xml.XmlFormat := xfReadable; 
 
  node := xml.NodeNew('item', [xml.NodeNewText('name', '张三'), xml.NodeNewInt('age', 11)]); 
  xml.Root.NodeAdd(node); 
 
  node := xml.NodeNew('item', [xml.NodeNewText('name', '李四'), xml.NodeNewInt('age', 22)]); 
  xml.Root.NodeAdd(node); 
 
  node := xml.NodeNew('item', [xml.NodeNewText('name', '王五'), xml.NodeNewInt('age', 33)]); 
  xml.Root.NodeAdd(node); 
 
  Memo1.Text := xml.WriteToString; 
  xml.Free; 
end; 
{结果同上} 
 
procedure TForm1.Button8Click(Sender: TObject); 
var 
  xml: TNativeXml; 
  node: TXmlNode; 
begin 
  xml := TNativeXml.CreateName('List'); 
  xml.XmlFormat := xfReadable; 
 
  xml.Root.NodesAdd([ 
     xml.NodeNew('item', [xml.NodeNewText('name', '张三'), xml.NodeNewInt('age', 11)]), 
     xml.NodeNew('item', [xml.NodeNewText('name', '李四'), xml.NodeNewInt('age', 22)]), 
     xml.NodeNew('item', [xml.NodeNewText('name', '王五'), xml.NodeNewInt('age', 33)]) 
  ]); 
 
  Memo1.Text := xml.WriteToString; 
  xml.Free; 
end; 
{结果同上} 
 
procedure TForm1.Button9Click(Sender: TObject); 
var 
  xml: TNativeXml; 
  node: TXmlNode; 
begin 
  xml := TNativeXml.CreateName('List'); 
  xml.XmlFormat := xfReadable; 
 
  node := xml.NodeNew('A', [xml.NodeNew('B', [xml.NodeNew('C', [xml.NodeNewText('D', 'E')])])]); 
  xml.Root.NodeAdd(node); 
 
  Memo1.Text := xml.WriteToString; 
  xml.Free; 
end; 
{*************************************** 
<?xml version="1.0" encoding="UTF-8"?> 
<List> 
    <A> 
        <B> 
            <C> 
                <D>E</D> 
            </C> 
        </B> 
    </A> 
</List> 
*****************************************}