在C#中使用带有默认命名空间的Xpath

using System;
using System.Xml;
using System.Xml.XPath;

class Program
{
    static void Main(string[] args)
    {
        string xml = @"<books>
                          <book>
                           <title>Book 1</title>
                           <author>Author 1</author>
                          </book>
                          <book>
                           <title>Book 2</title>
                           <author>Author 2</author>
                          </book>
                        </books>";

        XmlDocument doc = new XmlDocument();
        doc.LoadXml(xml);

        XPathNavigator navigator = doc.CreateNavigator();
        XPathNodeIterator nodes = navigator.Select("/books/book");

        while (nodes.MoveNext())
        {
            Console.WriteLine("Title: " + nodes.Current.SelectSingleNode("title").Value);
            Console.WriteLine("Author: " + nodes.Current.SelectSingleNode("author").Value);
        }
    }
}