二进制的序列化，反序列化。
需要序列化的类：

    [Serializable]
    public class SerializableClass
    {
        string name = string.Empty;
        int age = 0;
        string grade = string.Empty;
        public SerializableClass()
        {

        }

        public string Name
        {
            get
            {
                return name;
            }
            set
            {
                name = value;
            }
        }

        public int Age
        {
            get
            {
                return age;
            }
            set
            {
                age = value;
            }
        }

        public string Grade
        {
            get
            {
                return grade;
            }
            set
            {
                grade = value;
            }
        }
    }

实现序列化和反序列化
需要引用的命名空间
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;

        public void SerialzableCless()
        {
            //将对象序列化
            IFormatter format = new BinaryFormatter();
            Stream stream = new FileStream(@"c:\fastyou.bin",FileMode.Create,FileAccess.Write,FileShare.None);
            SerializableClass sc = new SerializableClass();
            sc.Age = 26;
            sc.Name = "fastyou";
            sc.Grade = "Advance";
            format.Serialize(stream, sc);
            stream.Close();
            //将文件流反序列化
            Stream dstream = new FileStream(@"c:\fastyou.bin", FileMode.Open, FileAccess.Read, FileShare.Read);
            SerializableClass scc = (SerializableClass)format.Deserialize(dstream);
            dstream.Close();
        }

对同一个类进行Soap 序列化
需要的命名空间
using System.Runtime.Serialization.Formatters.Soap;
还需要add System.Runtime.Serialization.Formatters.Soap.dll

public void SoapSerialzable()
        {
            //将对象序列化
            SoapFormatter format = new SoapFormatter();
            Stream stream = new FileStream(@"c:\fastyou.soap", FileMode.Create, FileAccess.Write, FileShare.None);
            SerializableClass sc = new SerializableClass();
            sc.Age = 26;
            sc.Name = "fastyou";
            sc.Grade = "Advance";
            format.Serialize(stream, sc);
            stream.Close();
            //将文件流反序列化
            Stream dstream = new FileStream(@"c:\fastyou.soap", FileMode.Open, FileAccess.Read, FileShare.Read);
            SerializableClass scc = (SerializableClass)format.Deserialize(dstream);
            dstream.Close();

        }

下面是序列化后的文件

<SOAP-ENV:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:clr="http://schemas.microsoft.com/soap/encoding/clr/1.0" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<SOAP-ENV:Body>
<a1:SerializableClass id="ref-1" xmlns:a1="http://schemas.microsoft.com/clr/nsassem/Test/Test%2C%20Version%3D1.0.0.0%2C%20Culture%3Dneutral%2C%20PublicKeyToken%3Dnull">
<name id="ref-3">fastyou</name>
<age>26</age>
<grade id="ref-4">Advance</grade>
</a1:SerializableClass>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>