请问一个xml读取的有关问题

请教一个xml读取的问题
xml如下：
<?xml version="1.0" encoding="UTF-8"?>
<result name="response" numFound="4" start="0">
<doc>
<str name="id">testdoc</str>
</doc>
<doc>
<str name="author">hello</str>
<str name="id">123</str>
<arr name="title">
<str>123</str>
</arr>
</doc>
<doc>
<str name="author">world</str>
<str name="id">234</str>
<arr name="title">
<str>234</str>
</arr>
</doc>
<doc>
<str name="author">please</str>
<str name="id">345</str>
<arr name="title">
<str>345</str>
</arr>
</doc>
</result>

请问如何将读取每个doc下面的author、id、title，请用C#，万分感谢！

[解决办法]

C# code

            XDocument doc = XDocument.Load("c:\\1.txt");            var vs = doc.Descendants("doc");            foreach (var v in vs)            {                foreach (XElement item in v.Nodes())                {                    MessageBox.Show(item.Value);                }            }
[解决办法]
C# code
void Main(){    XDocument xml=XDocument.Load("c:\\test.xml");    var query=from x in xml.Descendants("doc")                             select new                {                   author=x.Elements("str").Any(s=>s.Attribute("name").Value=="author")?x.Elements("str").FirstOrDefault(z=>z.Attribute("name").Value=="author").Value:"",                   id=x.Elements("str").Any(s=>s.Attribute("name").Value=="id")?x.Elements("str").FirstOrDefault(z=>z.Attribute("name").Value=="id").Value:"",                   title=x.Elements("str").Any(s=>s.Attribute("name").Value=="title")?x.Elements("str").FirstOrDefault(z=>z.Attribute("name").Value=="title").Value:"",                };    foreach(var item in query)        Console.WriteLine("author:{0}\tid:{1}\ttitle:{2}",item.author,item.id,item.title);}
[解决办法]
C# code
 foreach (XElement r in XElement.Load(Server.MapPath("~/XMLFile1.xml")).Elements("doc"))            {                var idobj=r.Elements("str").Where(c => c.Attribute("name").Value=="id");                var titleobj=r.Elements("arr").Where(c => c.Attribute("name").Value == "title");                var authorobj = r.Elements("str").Where(c => c.Attribute("name").Value == "author");                string id="", author="", title = "";                if (idobj.ToList().Count!= 0)  id = idobj.First().Value;                if (titleobj.ToList().Count != 0) title = titleobj.First().Value;                if (authorobj.ToList().Count != 0) author = authorobj.First().Value;                Response.Write("id:" + id + "titile:" + title + "author:" + author + "<br>");            }