原型模式

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<IPrototype>(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<T>(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


        }