原型模式：快速的创建一个对象而不需要提供专门的new()操作就可以快速完成对象的创建，这无疑是一种非常有效的方式，快速的创建一个新的对象。

UML图：

示例代码：

public interface IPrototype    {        IPrototype Clone();    }

[Serializable]    public class Prototype1:IPrototype    {        public string Name { get; set; }        public int Age { get; set; }        public Prototype2 ClassLevel { get; set; }        public IPrototype Clone()        {            //return (IPrototype)this.MemberwiseClone(); //浅复制            SerializableHelper s = new SerializableHelper();            string target = s.Serializable(this);            return s.Derializable
     
      (target);        }    }
     

[Serializable]    public class Prototype2:IPrototype    {        public string ClassName { get; set; }        public IPrototype Clone()        {            return (IPrototype)this.MemberwiseClone();        }    }

public class SerializableHelper    {        public string Serializable(object target)        {            using (MemoryStream stream = new MemoryStream())            {                new BinaryFormatter().Serialize(stream, target);                return Convert.ToBase64String(stream.ToArray());            }        }        public object Derializable(string target)        {            byte[] targetArray = Convert.FromBase64String(target);            using (MemoryStream stream = new MemoryStream(targetArray))            {                return new BinaryFormatter().Deserialize(stream);            }        }        public T Derializable
     
      (string target)        {            return (T)Derializable(target);        }    }
     

static void Main(string[] args)        {            Prototype2 pro2 = new Prototype2 { ClassName = "一年级" };            Prototype1 pro1 = new Prototype1 { Age = 25, Name = "cys", ClassLevel = pro2 };            var pro11 = (Prototype1)pro1.Clone();            pro11.Name = "wxd";//修改pro11不影响pro1            pro11.ClassLevel.ClassName = "二年级";//修改修改pro11影响pro1，需要深度复制        }