乐在其中设计模式(C#) - 原型模式(Prototype Pattern)

using System; 
using System.Collections.Generic; 
using System.Text; 
 
namespace Pattern.Prototype 
{ 
         /// <summary> 
         /// Message实体类 
         /// </summary> 
         public  class MessageModel 
        { 
                 /// <summary> 
                 /// 构造函数 
                 /// </summary> 
                 /// <param name="msg">Message内容</param> 
                 /// <param name="pt">Message发布时间</param> 
                 public MessageModel( string msg, DateTime pt) 
                { 
                         this._message = msg; 
                         this._publishTime = pt; 
                } 
 
                 private  string _message; 
                 /// <summary> 
                 /// Message内容 
                 /// </summary> 
                 public  string Message 
                { 
                        get {  return _message; } 
                        set { _message = value; } 
                } 
 
                 private DateTime _publishTime; 
                 /// <summary> 
                 /// Message发布时间 
                 /// </summary> 
                 public DateTime PublishTime 
                { 
                        get {  return _publishTime; } 
                        set { _publishTime = value; } 
                } 
        } 
}

using System; 
using System.Collections.Generic; 
using System.Text; 
 
namespace Pattern.Prototype 
{ 
         /// <summary> 
         /// 浅拷贝 
         /// </summary> 
         public  class ShallowCopy : ICloneable 
        { 
                 /// <summary> 
                 /// 构造函数 
                 /// </summary> 
                 public ShallowCopy() 
                { 
                         
                } 
 
                 /// <summary> 
                 /// 实现ICloneable的Clone()方法 
                 /// </summary> 
                 /// <returns></returns> 
                 public Object Clone() 
                { 
                         return  this.MemberwiseClone(); 
                } 
 
                 private MessageModel _mm; 
                 /// <summary> 
                 /// Message实体对象 
                 /// </summary> 
                 public MessageModel MessageModel 
                { 
                        get {  return _mm; } 
                        set { _mm = value; } 
                } 
        } 
}

using System; 
using System.Collections.Generic; 
using System.Text; 
 
namespace Pattern.Prototype 
{ 
         /// <summary> 
         /// 深拷贝 
         /// </summary> 
         public  class DeepCopy : ICloneable 
        { 
                 /// <summary> 
                 /// 构造函数 
                 /// </summary> 
                 public DeepCopy() 
                { 
                         
                } 
 
                 /// <summary> 
                 /// 构造函数 
                 /// </summary> 
                 /// <param name="mm">Message实体对象</param> 
                 public DeepCopy(MessageModel mm) 
                { 
                        _mm = mm; 
                } 
 
                 /// <summary> 
                 /// 实现ICloneable的Clone()方法 
                 /// </summary> 
                 /// <returns></returns> 
                 public Object Clone() 
                { 
                         return  new DeepCopy( new MessageModel(_mm.Message, _mm.PublishTime)); 
                } 
 
                 private MessageModel _mm; 
                 /// <summary> 
                 /// Message实体对象 
                 /// </summary> 
                 public MessageModel MessageModel 
                { 
                        get {  return _mm; } 
                        set { _mm = value; } 
                } 
        } 
}

using System; 
using System.Data; 
using System.Configuration; 
using System.Collections; 
using System.Web; 
using System.Web.Security; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using System.Web.UI.WebControls.WebParts; 
using System.Web.UI.HtmlControls; 
 
using Pattern.Prototype; 
 
public partial  class Prototype : System.Web.UI.Page 
{ 
         protected  void Page_Load( object sender, EventArgs e) 
        { 
                Response.Write( "ShallowCopy演示如下：<br />"); 
                ShowShallowCopy(); 
 
                Response.Write( "DeepCopy演示如下：<br />"); 
                ShowDeepCopy();         
        } 
 
         private  void ShowShallowCopy() 
        { 
                ShallowCopy sc =  new ShallowCopy(); 
                sc.MessageModel =  new MessageModel( "ShallowCopy", DateTime.Now); 
 
                ShallowCopy sc2 = (ShallowCopy)sc.Clone(); 
 
                Response.Write(sc.MessageModel.Message); 
                Response.Write( "<br />"); 
                Response.Write(sc2.MessageModel.Message); 
                Response.Write( "<br />"); 
 
                sc.MessageModel.Message =  "ShallowCopyShallowCopy"; 
 
                Response.Write(sc.MessageModel.Message); 
                Response.Write( "<br />"); 
                Response.Write(sc2.MessageModel.Message); 
                Response.Write( "<br />"); 
        } 
 
         private  void ShowDeepCopy() 
        { 
                DeepCopy sc =  new DeepCopy(); 
                sc.MessageModel =  new MessageModel( "DeepCopy", DateTime.Now); 
 
                DeepCopy sc2 = (DeepCopy)sc.Clone(); 
 
                Response.Write(sc.MessageModel.Message); 
                Response.Write( "<br />"); 
                Response.Write(sc2.MessageModel.Message); 
                Response.Write( "<br />"); 
 
                sc.MessageModel.Message =  "DeepCopyDeepCopy"; 
 
                Response.Write(sc.MessageModel.Message); 
                Response.Write( "<br />"); 
                Response.Write(sc2.MessageModel.Message); 
                Response.Write( "<br />"); 
        } 
}