using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

//要使用JavaScriptSerializer需添加这个using System.Web.Script.Serialization;引用

using System.Web.Script.Serialization;

using System.Web.UI;

using System.Web.UI.WebControls;

//要使用XDocument需添加这个using System.Xml.Linq引用

using System.Xml.Linq;

//要使用JsonConvert需添加这个Newtonsoft.Json.dll引用

using Newtonsoft.Json;

using System.Xml;

public partial class xmlchange : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

        var xml =

        @"<Columns>

          <Column Name=""key1"">key1</Column>

          <Column Name=""key2"">key2</Column>

          <Column Name=""key3"">key3</Column>

        </Columns>";

        var dic = XDocument

            .Parse(xml)

            .Descendants("Column")

            .ToDictionary(

                c => c.Attribute("Name").Value,

                c => c.Value

            );

        var json = new JavaScriptSerializer().Serialize(dic);

        Label1.Text = json;

        xml model = JsonConvert.DeserializeObject<xml>(json);

        Label2.Text = model.key1;

        Label3.Text = model.key2;

        Label4.Text = model.key3;

    }

    public class xml

    {

        public string key1 { get; set; }

        public string key2 { get; set; }

        public string key3 { get; set; }

    }

}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.Script.Serialization;

using System.Web.UI;

using System.Web.UI.WebControls;

public partial class jsonchange : System.Web.UI.Page

{

    protected void Page_Load(object sender, EventArgs e)

    {

        test te = new test();

        te.test1 = ;

        te.test2 = "test";

        JavaScriptSerializer jsonSerializer = new JavaScriptSerializer();

        //执行序列化

        string r1 = jsonSerializer.Serialize(te);

        Label1.Text =r1;

        //执行反序列化

        test per = jsonSerializer.Deserialize<test>(r1);

        Label2.Text = per.test1.ToString();

        Label3.Text = per.test2;

    }

    public class test

    {

        public int test1 { get; set; }

        public string test2 { get; set; }

    }

}

 XmlDocument doc = new XmlDocument();

            doc.LoadXml(RetrunString);

            XmlElement root = doc.DocumentElement;

            string nameSpace = root.NamespaceURI;

            XmlNamespaceManager nsmgr = new XmlNamespaceManager(doc.NameTable);

            nsmgr.AddNamespace("SOAP-ENV", nameSpace);

            string value = doc.SelectSingleNode("/SOAP-ENV:Envelope/SOAP-ENV:Body/ProcessShipmentReply/CompletedShipmentDetail/CompletedPackageDetails/", nsmgr).InnerText;

            byte[] imageBytes1 = Convert.FromBase64String(value);

            System.IO.MemoryStream ms = new System.IO.MemoryStream(imageBytes1);

            System.Drawing.Image img = System.Drawing.Image.FromStream(ms);