[索引頁]
[源碼下載]
作者：webabcd
介紹
用原型實例指定創建對象的種類，并且通過拷貝這個原型來創建新的對象。
示例
有一個Message實體類，現在要克隆它。 
using?System;?
using?System.Collections.Generic;?
using?System.Text;?
?
namespace?Pattern.Prototype?
{?
????????/// <summary>?
????????///?Message實體類?
????????/// </summary>?
????????public?class?MessageModel?
????????{?
????????????????/// <summary>?
????????????????///?構造函數?
????????????????/// </summary>?
????????????????/// <param name="msg">Message內容</param>?
????????????????/// <param name="pt">Message發布時間</param>?
????????????????public?MessageModel(string?msg, DateTime pt)?
????????????????{?
????????????????????????this._message = msg;?
????????????????????????this._publishTime = pt;?
????????????????}?
?
????????????????private?string?_message;?
????????????????/// <summary>?
????????????????///?Message內容?
????????????????/// </summary>?
????????????????public?string?Message?
????????????????{?
????????????????????????get {?return?_message; }?
????????????????????????set { _message = value; }?
????????????????}?
?
????????????????private?DateTime _publishTime;?
????????????????/// <summary>?
????????????????///?Message發布時間?
????????????????/// </summary>?
????????????????public?DateTime PublishTime?
????????????????{?
????????????????????????get {?return?_publishTime; }?
????????????????????????set { _publishTime = value; }?
????????????????}?
????????}?
} using?System;?
using?System.Collections.Generic;?
using?System.Text;?
?
namespace?Pattern.Prototype?
{?
????????/// <summary>?
????????///?淺拷貝?
????????/// </summary>?
????????public?class?ShallowCopy : ICloneable?
????????{?
????????????????/// <summary>?
????????????????///?構造函數?
????????????????/// </summary>?
????????????????public?ShallowCopy()?
????????????????{?
?????????????????????????
????????????????}?
?
????????????????/// <summary>?
????????????????///?實現ICloneable的Clone()方法?
????????????????/// </summary>?
????????????????/// <returns></returns>?
????????????????public?Object Clone()?
????????????????{?
????????????????????????return?this.MemberwiseClone();?
????????????????}?
?
????????????????private?MessageModel _mm;?
????????????????/// <summary>?
????????????????///?Message實體對象?
????????????????/// </summary>?
????????????????public?MessageModel MessageModel?
????????????????{?
????????????????????????get {?return?_mm; }?
????????????????????????set { _mm = value; }?
????????????????}?
????????}?
} using?System;?
using?System.Collections.Generic;?
using?System.Text;?
?
namespace?Pattern.Prototype?
{?
????????/// <summary>?
????????///?深拷貝?
????????/// </summary>?
????????public?class?DeepCopy : ICloneable?
????????{?
????????????????/// <summary>?
????????????????///?構造函數?
????????????????/// </summary>?
????????????????public?DeepCopy()?
????????????????{?
?????????????????????????
????????????????}?
?
????????????????/// <summary>?
????????????????///?構造函數?
????????????????/// </summary>?
????????????????/// <param name="mm">Message實體對象</param>?
????????????????public?DeepCopy(MessageModel mm)?
????????????????{?
????????????????????????_mm = mm;?
????????????????}?
?
????????????????/// <summary>?
????????????????///?實現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實體對象?
????????????????/// </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 />");?
????????}?
}
[源碼下載]
樂在其中設計模式(C#) - 原型模式(Prototype Pattern)
作者：webabcd
介紹
用原型實例指定創建對象的種類，并且通過拷貝這個原型來創建新的對象。
示例
有一個Message實體類，現在要克隆它。
MessageModel
using?System;?using?System.Collections.Generic;?using?System.Text;??namespace?Pattern.Prototype?{?????????/// <summary>?????????///?Message實體類?????????/// </summary>?????????public?class?MessageModel?????????{?????????????????/// <summary>?????????????????///?構造函數?????????????????/// </summary>?????????????????/// <param name="msg">Message內容</param>?????????????????/// <param name="pt">Message發布時間</param>?????????????????public?MessageModel(string?msg, DateTime pt)?????????????????{?????????????????????????this._message = msg;?????????????????????????this._publishTime = pt;?????????????????}??????????????????private?string?_message;?????????????????/// <summary>?????????????????///?Message內容?????????????????/// </summary>?????????????????public?string?Message?????????????????{?????????????????????????get {?return?_message; }?????????????????????????set { _message = value; }?????????????????}??????????????????private?DateTime _publishTime;?????????????????/// <summary>?????????????????///?Message發布時間?????????????????/// </summary>?????????????????public?DateTime PublishTime?????????????????{?????????????????????????get {?return?_publishTime; }?????????????????????????set { _publishTime = value; }?????????????????}?????????}?}ShallowCopy
using?System;?using?System.Collections.Generic;?using?System.Text;??namespace?Pattern.Prototype?{?????????/// <summary>?????????///?淺拷貝?????????/// </summary>?????????public?class?ShallowCopy : ICloneable?????????{?????????????????/// <summary>?????????????????///?構造函數?????????????????/// </summary>?????????????????public?ShallowCopy()?????????????????{??????????????????????????????????????????}??????????????????/// <summary>?????????????????///?實現ICloneable的Clone()方法?????????????????/// </summary>?????????????????/// <returns></returns>?????????????????public?Object Clone()?????????????????{?????????????????????????return?this.MemberwiseClone();?????????????????}??????????????????private?MessageModel _mm;?????????????????/// <summary>?????????????????///?Message實體對象?????????????????/// </summary>?????????????????public?MessageModel MessageModel?????????????????{?????????????????????????get {?return?_mm; }?????????????????????????set { _mm = value; }?????????????????}?????????}?}DeepCopy
using?System;?using?System.Collections.Generic;?using?System.Text;??namespace?Pattern.Prototype?{?????????/// <summary>?????????///?深拷貝?????????/// </summary>?????????public?class?DeepCopy : ICloneable?????????{?????????????????/// <summary>?????????????????///?構造函數?????????????????/// </summary>?????????????????public?DeepCopy()?????????????????{??????????????????????????????????????????}??????????????????/// <summary>?????????????????///?構造函數?????????????????/// </summary>?????????????????/// <param name="mm">Message實體對象</param>?????????????????public?DeepCopy(MessageModel mm)?????????????????{?????????????????????????_mm = mm;?????????????????}??????????????????/// <summary>?????????????????///?實現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實體對象?????????????????/// </summary>?????????????????public?MessageModel MessageModel?????????????????{?????????????????????????get {?return?_mm; }?????????????????????????set { _mm = value; }?????????????????}?????????}?}client
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 />");?????????}?}運行結果
ShallowCopy演示如下：
ShallowCopy
ShallowCopy
ShallowCopyShallowCopy
ShallowCopyShallowCopy
DeepCopy演示如下：
DeepCopy
DeepCopy
DeepCopyDeepCopy
DeepCopy
參考
http://www.dofactory.com/Patterns/PatternPrototype.aspx
OK
[源碼下載]
ShallowCopy演示如下：
ShallowCopy
ShallowCopy
ShallowCopyShallowCopy
ShallowCopyShallowCopy
DeepCopy演示如下：
DeepCopy
DeepCopy
DeepCopyDeepCopy
DeepCopy
參考
http://www.dofactory.com/Patterns/PatternPrototype.aspx
OK
[源碼下載]
? ? ?本文轉自webabcd 51CTO博客，原文鏈接：http://blog.51cto.com/webabcd/344497，如需轉載請自行聯系原作者
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