It is known that there is an XML file (bookstore. xml) as follows:
<? Xml version = "1.0" encoding = "gb2312"?>
<Bookstore>
<Book genre = "fantasy" ISBN = "2-3631-4">
<Title> Oberon's Legacy </title>
<Author> Corets, Eva </author>
<Price> 5.95 </price>
</Book>
</Bookstore>
1. Insert a <book> node to the <bookstore> node:
XmlDocument xmlDoc = new XmlDocument ();
XmlDoc. Load ("bookstore. xml ");
XmlNode root = xmlDoc. SelectSingleNode ("bookstore"); // query <bookstore>
XmlElement xe1 = xmlDoc. CreateElement ("book"); // Create a <book> node
Xe1.SetAttribute ("genre", "Lizan red"); // you can specify the genre attribute of the node.
Xe1.SetAttribute ("ISBN", "2-3631-4"); // you can specify the ISBN attribute of the node.
XmlElement xesub1 = xmlDoc. CreateElement ("title ");
Xesub1.InnerText = "CS from entry to entry"; // set a text node
Xe1.AppendChild (xesub1); // add it to the <book> node
XmlElement xesub2 = xmlDoc. CreateElement ("author ");
Xesub2.InnerText = "Hou Jie ";
Xe1.AppendChild (xesub2 );
XmlElement xesub3 = xmlDoc. CreateElement ("price ");
Xesub3.InnerText = "58.3 ";
Xe1.AppendChild (xesub3 );
Root. AppendChild (xe1); // add it to the <bookstore> node
XmlDoc. Save ("bookstore. xml ");
// ================================================ ==========
Result:
<? Xml version = "1.0" encoding = "gb2312"?>
