orders.xml文档内容如下
<?xml version="1.0"?>
<Order id="2004-01-30.195496">
  <Client id="ROS-930252034">
    <Name>Remarkable Office Supplies</Name>
  </Client>
  
  <Items>
    <Item id="1001">
      <Name>Electronic Protractor</Name>
      <Price>42.99</Price>
    </Item>
    <Item id="1002">
      <Name>Invisible Ink</Name>
      <Price>200.25</Price>
    </Item>
  </Items>
</Order>
 
 
 
//该代码片段来自于:www.sharejs.com/codes/csharp/7775
   
C#代码
using System;
using System.Xml;
  
public class XPathSelectNodes {
    private static void Main() {
  
        // Load the document.
        XmlDocument doc = new XmlDocument();
        doc.Load("orders.xml");
        XmlNodeList nodes = doc.SelectNodes("/Order/Items/Item/Name");
  
        foreach (XmlNode node in nodes) {
            Console.WriteLine(node.InnerText);
        }
  
        Console.ReadLine();
    }
}
 
 
//该代码片段来自于:www.sharejs.com/codes/csharp/7775