[Serializable]
public class ObjectClass
{
	public ObjectClass ():this(0, null, 0.0f)
	{
	}
	public ObjectClass(int age, string name, float salary)
	{
		Age = age;
		Name = name;
		_salary = salary;
	}

	public int Age;
	public string Name;
	private float _salary;//私有字段不会被序列化
}

Obj = new ObjectClass(6, "ha", 60);//obj为该类的公有字段，为其赋值
StreamWriter sw = new StreamWriter("objClassXml.xml");//创建xml文件流
XmlSerializer xs = new XmlSerializer(typeof(ObjectClass));//根据对象类型来创建序列化器
xs.Serialize (sw, Obj);//进行序列化
sw.Close ();//关闭文件流

 <?xml version="1.0" encoding="UTF-8"?>
-<ObjectClass xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <Age>6</Age>
   <Name>ha</Name>
 </ObjectClass>

[Serializable]
public struct ObjectStruct
{
	public ObjectStruct(int age, string name, float salary)
	{
		Age = age;
		Name = name;
		Salary = salary;
	}
	public int Age;
	public string Name;
	public float Salary;
}

Obj = new ObjectStruct(60, "wow", 600);//obj为该类的公有字段，为其赋值
StreamWriter sw = new StreamWriter("objStructXml.xml");
XmlSerializer xs = new XmlSerializer(typeof(ObjectStruct));
xs.Serialize (sw, Obj);
sw.Close ();

 <?xml version="1.0" encoding="UTF-8"?>
-<ObjectStruct xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <Age>60</Age>
    <Name>wow</Name>
    <Salary>600</Salary>
 </ObjectStruct>

ObjArr = new ObjectClass[2];
ObjArr[0] = new ObjectClass(8, "arr1", 80);
ObjArr[1] = new ObjectClass(9, "arr2", 90);
StreamWriter sw = new StreamWriter("objClassArrayXml.xml");
XmlSerializer xs = new XmlSerializer(typeof(ObjectClass[]));
xs.Serialize (sw, ObjArr);
sw.Close ();

 <?xml version="1.0" encoding="UTF-8"?>
-<ArrayOfObjectClass xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  -<ObjectClass>
      <Age>8</Age>
      <Name>arr1</Name>
    </ObjectClass>
   -<ObjectClass>
      <Age>9</Age>
      <Name>arr2</Name>
    </ObjectClass>
</ArrayOfObjectClass>

ObjectClass objC = new ObjectClass(4, "ni", 40);
ListObjC.Add (objC);//ListObjC为public List<ObjectClass> ListObjC = new List<ObjectClass>(2);
objC = new ObjectClass(5, "hao", 50);
ListObjC.Add (objC);
StreamWriter swL = new StreamWriter("objClassListXml.xml");
XmlSerializer xsL = new XmlSerializer(typeof(List<ObjectClass>));
xsL.Serialize (swL, ListObjC);
swL.Close ();

 <?xml version="1.0" encoding="UTF-8"?>
-<ArrayOfObjectClass xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
 -<ObjectClass>
    <Age>4</Age>
    <Name>ni</Name>
  </ObjectClass>
 -<ObjectClass>
    <Age>5</Age>
    <Name>hao</Name>
  </ObjectClass>
</ArrayOfObjectClass>

[Serializable]
public class ObjectComplexClass
{
	public ObjectComplexClass ():this(0, "", 0.0f)
	{
	}
	public ObjectComplexClass(ObjectClass obj)
	{
		Obj = obj;
	}
	public ObjectComplexClass (int age, string name, float salary)
	{
		Obj = new ObjectClass(age, name, salary);
	}
	public ObjectClass Obj;//公有字段为类ObjectClass
}

ObjComplexC = new ObjectComplexClass(ObjC);//ObjComplexC为public ObjectComplexClass ObjComplexC;
StreamWriter swC = new StreamWriter("objComplexClassXml.xml");
XmlSerializer xsC = new XmlSerializer(typeof(ObjectComplexClass));
xsC.Serialize (swC, ObjComplexC);
swC.Close ();

<?xml version="1.0" encoding="UTF-8"?>
-<ObjectComplexClass xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    -<Obj>
      <Age>6</Age>
      <Name>ha</Name>
     </Obj>
</ObjectComplexClass>

StreamReader srO = new StreamReader("objClassXml.xml");
XmlSerializer xsO = new XmlSerializer(typeof(ObjectClass));
ObjectClass oc = (ObjectClass)xsO.Deserialize (srO);//这里有转型，不要忘记
srO.Close ();