using System;
using System.Collections.Generic;
using System.Text;
using System.Xml;
using System.IO;

namespace UseXmlReader
{
    class Program
    {
        static void Main(string[] args)
        {
            //聲明StringReader傳入Xml文本，作為XmlReader.Create的參數(shù)
            using (StringReader strRdr = new StringReader(@"<?xml version=""1.0"" encoding=""utf-8"" ?>
<root>
    <cat color=""white"">I'm a Cat</cat>
    <dog color=""yellow""/>
</root>"))
            {
                //通過XmlReader.Create靜態(tài)方法創(chuàng)建XmlReader實例
                using (XmlReader rdr = XmlReader.Create(strRdr))
                {
                    //循環(huán)Read方法直到文檔結(jié)束
                    while (rdr.Read())
                    {
                        Console.WriteLine("rdr.NodeType = " + rdr.NodeType);
                        //如果是開始節(jié)點
                        if (rdr.NodeType == XmlNodeType.Element) {
                            //通過rdr.Name得到節(jié)點名
                            string elementName = rdr.Name;

                            Console.WriteLine(elementName + " element start");
                            if (elementName == "root") {

                            }
                            //讀取到cat元素 這時rdr.Read()讀取到的內(nèi)容為<cat color="white">
                            else if (elementName == "cat")
                            {
                                //可以通過中括號獲得屬性值
                                string colorVal = rdr["color"];
                                Console.WriteLine("\tcat's color is " + colorVal);

                                //讀取到節(jié)點內(nèi)文本內(nèi)容
                                if(rdr.Read()) {
                                    //通過rdr.Value獲得文本內(nèi)容
                                    Console.WriteLine("\t cat said:" + rdr.Value);
                                }
                            }
                        }
                        else if (rdr.NodeType == XmlNodeType.EndElement)
                        {
                            //在節(jié)點結(jié)束時也可以通過rdr.Name獲得節(jié)點名字
                            string elementName = rdr.Name;
                            Console.WriteLine(elementName + " element end");
                        }
                    }
                }
            }

            Console.Read();
        }
    }
}
如果覺得代碼不明白，下面是一張讀取順序圖，標(biāo)明了讀取順序號和每次讀取的內(nèi)容，如下圖所示：