using system; using system.xml; using system.xml.serialization; using system.text; using system.io; public class util {     /// <summary>     /// 对象序列化成 xml string     /// </summary>     public static string xmlserialize<t>(t obj)     {         string xmlstring = string.empty;         xmlserializer xmlserializer = new xmlserializer(typeof(t));         using (memorystream ms = new memorystream())         {             xmlserializer.serialize(ms, obj);             xmlstring = encoding.utf8.getstring(ms.toarray());         }         return xmlstring;     }     /// <summary>     /// xml string 反序列化成对象     /// </summary>     public static t xmldeserialize<t>(string xmlstring)     {         t t = default(t);         xmlserializer xmlserializer = new xmlserializer(typeof(t));         using (stream xmlstream = new memorystream(encoding.utf8.getbytes(xmlstring)))         {             using (xmlreader xmlreader = xmlreader.create(xmlstream))             {                 object obj = xmlserializer.deserialize(xmlreader);                 t = (t)obj;             }         }         return t;     } }

//radio.cs using system; using system.collections.generic; using system.text; namespace simpleserialize {   [serializable]   public class radio   {     public bool hastweeters;     public bool hassubwoofers;     public double[] stationpresets;     [nonserialized]     public string radioid = "xf-552rr6";   } } //cars.cs using system; using system.collections.generic; using system.text; using system.xml.serialization; namespace simpleserialize {   [serializable]   public class car   {     public radio theradio = new radio();     public bool ishatchback;   }   [serializable, xmlroot(namespace = "http://www.intertech.com")]   public class jamesbondcar : car   {     [xmlattribute]     public bool canfly;     [xmlattribute]     public bool cansubmerge;     public jamesbondcar(bool skyworthy, bool seaworthy)     {       canfly = skyworthy;       cansubmerge = seaworthy;     }     // the xmlserializer demands a default constructor!     public jamesbondcar() { }   } }

//program.cs using system; using system.collections.generic; using system.text; using system.io; // for the formatters. using system.runtime.serialization.formatters.binary; using system.runtime.serialization.formatters.soap; using system.xml.serialization; namespace simpleserialize {   class program   {     static void main(string[] args)     {       console.writeline("***** fun with object serialization *****n");       // make a jamesbondcar and set state.       jamesbondcar jbc = new jamesbondcar();       jbc.canfly = true;       jbc.cansubmerge = false;       jbc.theradio.stationpresets = new double[] { 89.3, 105.1, 97.1 };       jbc.theradio.hastweeters = true;       // now save / load the car to a specific file.       saveasbinaryformat(jbc, "cardata.dat");       loadfrombinaryfile("cardata.dat");       saveassoapformat(jbc, "cardata.soap");       saveasxmlformat(jbc, "cardata.xml");       savelistofcars();       savelistofcarsasbinary();       console.readline();     }     #region save / load as binary format     static void saveasbinaryformat(object objgraph, string filename)     {       // save object to a file named cardata.dat in binary.       binaryformatter binformat = new binaryformatter();       using (stream fstream = new filestream(filename,             filemode.create, fileaccess.write, fileshare.none))       {         binformat.serialize(fstream, objgraph);       }       console.writeline("=> saved car in binary format!");     }     static void loadfrombinaryfile(string filename)     {       binaryformatter binformat = new binaryformatter();       // read the jamesbondcar from the binary file.       using (stream fstream = file.openread(filename))       {         jamesbondcar carfromdisk =           (jamesbondcar)binformat.deserialize(fstream);         console.writeline("can this car fly? : {0}", carfromdisk.canfly);       }     }     #endregion     #region save as soap format     // be sure to import system.runtime.serialization.formatters.soap     // and reference system.runtime.serialization.formatters.soap.dll.     static void saveassoapformat(object objgraph, string filename)     {       // save object to a file named cardata.soap in soap format.       soapformatter soapformat = new soapformatter();       using (stream fstream = new filestream(filename,         filemode.create, fileaccess.write, fileshare.none))       {         soapformat.serialize(fstream, objgraph);       }       console.writeline("=> saved car in soap format!");     }     #endregion     #region save as xml format     static void saveasxmlformat(object objgraph, string filename)     {       // save object to a file named cardata.xml in xml format.       xmlserializer xmlformat = new xmlserializer(typeof(jamesbondcar),         new type[] { typeof(radio), typeof(car) });       using (stream fstream = new filestream(filename,         filemode.create, fileaccess.write, fileshare.none))       {         xmlformat.serialize(fstream, objgraph);       }       console.writeline("=> saved car in xml format!");     }     #endregion     #region save collection of cars     static void savelistofcars()     {       // now persist a list<> of jamesbondcars.       list<jamesbondcar> mycars = new list<jamesbondcar>();       mycars.add(new jamesbondcar(true, true));       mycars.add(new jamesbondcar(true, false));       mycars.add(new jamesbondcar(false, true));       mycars.add(new jamesbondcar(false, false));       using (stream fstream = new filestream("carcollection.xml",         filemode.create, fileaccess.write, fileshare.none))       {         xmlserializer xmlformat = new xmlserializer(typeof(list<jamesbondcar>),           new type[] { typeof(jamesbondcar), typeof(car), typeof(radio) });         xmlformat.serialize(fstream, mycars);       }       console.writeline("=> saved list of cars!");     }     static void savelistofcarsasbinary()     {       // save arraylist object (mycars) as binary.       list<jamesbondcar> mycars = new list<jamesbondcar>();       binaryformatter binformat = new binaryformatter();       using (stream fstream = new filestream("allmycars.dat",         filemode.create, fileaccess.write, fileshare.none))       {         binformat.serialize(fstream, mycars);       }       console.writeline("=> saved list of cars in binary!");     }     #endregion   } }