C# 对象二进制序列化

using System.Runtime.Serialization.Formatters.Binary;
public class SerializationUnit
{        
    /// <summary>
    /// 把对象序列化为字节数组
    /// </summary>
    public static byte[] SerializeObject(object obj)
    {
        if (obj == null)
            return null;
        MemoryStream ms = new MemoryStream();
        BinaryFormatter formatter = new BinaryFormatter();
        formatter.Serialize(ms, obj);
        ms.Position = 0;
        byte[] bytes = new byte[ms.Length];
        ms.Read(bytes, 0, bytes.Length);
        ms.Close();
        return bytes;
    }

    /// <summary>
    /// 把字节数组反序列化成对象
    /// </summary>
    public static object DeserializeObject(byte[] bytes)
    {
        object obj = null;
        if (bytes == null)
            return obj;
        MemoryStream ms = new MemoryStream(bytes);
        ms.Position = 0;
        BinaryFormatter formatter = new BinaryFormatter();
        obj = formatter.Deserialize(ms);
        ms.Close();
        return obj;
    }
}