C#中Builder生成器模式解决配置电脑的问题详解-Tutorial C#.Net-php.cn

这篇文章主要介绍了C#设计模式之Builder生成器模式解决带老婆配置电脑问题,简单介绍了生成器模式的概念、功能并结合具体实例形式分析了C#生成器模式解决配电脑问题的步骤与相关操作技巧,需要的朋友可以参考下

本文实例讲述了C#设计模式之Builder生成器模式解决带老婆配置电脑问题。分享给大家供大家参考，具体如下：

一、理论定义

生成器模式又叫：建造者模式，它可以把一个复杂的对象，分步骤创建。

二、应用举例

需求描述：话说发工资了，打算去岗顶百脑汇给老婆配置一台电脑。
OK，坐着BRT，就出发了。
到岗顶，一美女扑面而来，面带微笑：先生，请问看中那个品牌，过来看一下嘛！
人家都开口了，盛情难却，就看下吧。

三、具体编码

1.CPU

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Builder
{
  /// <summary>
  /// CPU
  /// </summary>
  public class CPU
  {
    /// <summary>
    /// CPU品牌
    /// </summary>
    public string Brand { get; set; }
    /// <summary>
    /// CPU系列名
    /// </summary>
    public string SerialsName { get; set; }
    //其他属性...........
  }
}

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2.主板

主板MotherBoard

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Builder
{
  /// <summary>
  /// 主板
  /// </summary>
  public class MotherBoard
  {
    /// <summary>
    /// 主板品牌
    /// </summary>
    public string Brand { get; set; }
    /// <summary>
    /// 主板系列名
    /// </summary>
    public string SerialsName { get; set; }
    //其他属性...........
  }
}

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3.内存条

内存条Memory

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Builder
{
  /// <summary>
  /// Memory
  /// </summary>
  public class Memory
  {
    /// <summary>
    /// Memory品牌
    /// </summary>
    public string Brand { get; set; }
    /// <summary>
    /// Memory系列名
    /// </summary>
    public string SerialsName { get; set; }
    //其他属性...........
  }
}

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4.硬盘

硬盘HardDisk

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Builder
{
  /// <summary>
  /// HardDisk
  /// </summary>
  public class HardDisk
  {
    /// <summary>
    /// HardDisk品牌
    /// </summary>
    public string Brand { get; set; }
    /// <summary>
    /// HardDisk系列名
    /// </summary>
    public string SerialsName { get; set; }
    //其他属性...........
  }
}

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5.显卡

显卡GraphicCard

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Builder
{
  /// <summary>
  ///显卡 GraphicCard
  /// </summary>
  public class GraphicCard
  {
    /// <summary>
    /// 显卡GraphicCard品牌
    /// </summary>
    public string Brand { get; set; }
    /// <summary>
    /// 显卡GraphicCard系列名
    /// </summary>
    public string SerialsName { get; set; }
    //其他属性...........
  }
}

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6.显示器

显示器Display

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Builder
{
  /// <summary>
  /// Display
  /// </summary>
  public class Display
  {
    /// <summary>
    /// 显示器品牌
    /// </summary>
    public string Brand { get; set; }
   /// <summary>
   /// 系列名
   /// </summary>
   public string SerialsName { get; set; }
    //其他属性...........
  }
}

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7.音箱

音箱Speakers

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Builder
{
  /// <summary>
  /// 音箱Speakers
  /// </summary>
  public class Speakers
  {
    /// <summary>
    /// Speakers品牌
    /// </summary>
    public string Brand { get; set; }
    /// <summary>
    /// Speakers系列名
    /// </summary>
    public string SerialsName { get; set; }
    //其他属性...........
  }
}

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8.键盘

键盘Keyboard

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Builder
{
  /// <summary>
  /// 键盘Keyboard
  /// </summary>
  public class Keyboard
  {
    /// <summary>
    /// Keyboard品牌
    /// </summary>
    public string Brand { get; set; }
    /// <summary>
    /// 键盘Keyboard系列名
    /// </summary>
    public string SerialsName { get; set; }
    //其他属性...........
  }
}

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9.鼠标

鼠标Mouse

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Builder
{
  /// <summary>
  /// 鼠标Mouse
  /// </summary>
  public class Mouse
  {
    /// <summary>
    /// Mouse品牌
    /// </summary>
    public string Brand { get; set; }
    /// <summary>
    /// 鼠标Mouse系列名
    /// </summary>
    public string SerialsName { get; set; }
    //其他属性...........
  }
}

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10.电脑配置单Config

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Builder
{
  public class Config
  {
    /// <summary>
    /// CPU
    /// </summary>
    public CPU CPU { get; set; }
    /// <summary>
    /// 显示器
    /// </summary>
    public Display Display { get; set; }
    /// <summary>
    /// 主板
    /// </summary>
    public MotherBoard MotherBoard { get; set; }
    /// <summary>
    /// 内存条
    /// </summary>
    public Memory Memory { get; set; }
    /// <summary>
    /// 硬盘
    /// </summary>
    public HardDisk HardDisk { get; set; }
    /// <summary>
    /// 显卡
    /// </summary>
    public GraphicCard GraphicCard { get; set; }
    /// <summary>
    /// 音箱
    /// </summary>
    public Speakers Speakers { get; set; }
    /// <summary>
    /// 键盘
    /// </summary>
    public Keyboard Keyboard { get; set; }
    /// <summary>
    /// 鼠标
    /// </summary>
    public Mouse Mouse { get; set; }
  }
}

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11.一台电脑Computer

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Builder
{
  /// <summary>
  /// 电脑
  /// </summary>
  public class Computer
  {
    /// <summary>
    /// CPU
    /// </summary>
    public CPU CPU { get; set; }
    /// <summary>
    /// 显示器
    /// </summary>
    public Display Display { get; set; }
     /// <summary>
    /// 主板
    /// </summary>
    public MotherBoard MotherBoard { get; set; }
    /// <summary>
    /// 内存条
    /// </summary>
    public Memory Memory { get; set; }
    /// <summary>
    /// 硬盘
    /// </summary>
    public HardDisk HardDisk { get; set; }
    /// <summary>
    /// 显卡
    /// </summary>
    public GraphicCard GraphicCard { get; set; }
    /// <summary>
    /// 音箱
    /// </summary>
    public Speakers Speakers { get; set; }
    /// <summary>
    /// 键盘
    /// </summary>
    public Keyboard Keyboard { get; set; }
    /// <summary>
    /// 鼠标
    /// </summary>
    public Mouse Mouse { get; set; }
    /// <summary>
    /// 电脑品牌厂商
    /// </summary>
    public Manufactures Manufactures { get; set; }
    /// <summary>
    /// 属于的系列
    /// </summary>
    public string Serials{ get; set; }
    /// <summary>
    /// 显示电脑配置
    /// </summary>
    public void ShowConfig()
    {
      Console.WriteLine(Manufactures +"\t"+ Serials+"  系列的配置如下：");
      Console.WriteLine("--------------------------------------------------");
      Console.WriteLine("配件   品牌\t   系列");
      Console.WriteLine("CPU   " + CPU.Brand + "\t " + CPU.SerialsName + "系列");
      Console.WriteLine("主板   " + MotherBoard.Brand + "\t " + MotherBoard.SerialsName + "系列");
      Console.WriteLine("内存条  " + Memory.Brand + "\t " + Memory.SerialsName + "系列");
      Console.WriteLine("硬盘   " + HardDisk.Brand + "\t " + HardDisk.SerialsName + "系列");
      Console.WriteLine("显卡   " + GraphicCard.Brand + "\t " + GraphicCard.SerialsName + "系列");
      Console.WriteLine("显示器  " + Display.Brand + "\t " + Display.SerialsName + "系列");
      Console.WriteLine("音箱   " + Speakers.Brand + "\t " + Speakers.SerialsName + "系列");
      Console.WriteLine("键盘   " + Keyboard.Brand + "\t " + Keyboard.SerialsName + "系列");
      Console.WriteLine("鼠标   " + Mouse.Brand + "\t " + Mouse.SerialsName + "系列");
      Console.WriteLine(); Console.WriteLine();
    }
  }
}

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12.某一品牌某一系列产品的具体配置

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Com.Design.Gof.Builder.Factory;
namespace Com.Design.Gof.Builder
{
  /// <summary>
  /// 某一个产品的配置
  /// </summary>
  public class SerialsModel
  {
    private Config cfg = null;
    /// <summary>
    /// 获取电脑配置单
    /// </summary>
    /// <param name="Manufactures"></param>
    /// <param name="SerialsName"></param>
    public SerialsModel(Manufactures Manufactures, string SerialsName)
    {
      cfg= ConfigFactory.GetConfig(Manufactures, SerialsName);
    }
    /// <summary>
    /// 具体配置,每个产品系列都有对应的产品配置单
    /// </summary>
    public Config Cfg
    {
      get { return cfg; }
    }
  }
}

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13.电脑配置单，读取的是XML文件，一共有三个测试文件，联想ThinkPad.xml，三星.xml，索尼.xml，下面只显示联想，其他的随附件下载

<?xml version="1.0" encoding="utf-8" ?>
<products>
 <product Brand="lenovo" Serials="联想IdeaCentre K330">
  <config>
   <cpu Brand="Intel">Intel 酷睿 i5 2320 </cpu>
   <MotherBoard Brand="华硕">华硕 H61系列</MotherBoard>
   <Memory Brand="金士顿">金士顿 XXXX</Memory>
   <HardDisk Brand="希捷">希捷1TB 7200转，SATA2</HardDisk>
   <GraphicCard Brand="华硕">华硕显卡XXXX</GraphicCard>
   <Display Brand="lenovo">联想显示器XXXX</Display>
   <Speakers Brand="lenovo">联想XXXX</Speakers>
   <Keyboard Brand="lenovo">联想键盘XXXX</Keyboard>
   <Mouse Brand="微软">微软鼠标XXXX</Mouse>
  </config>
 </product>
 <product Brand="ThinkPad" Serials="联想Y670P-IFI">
  <config>
   <cpu Brand="Intel">Intel 酷睿i5 2450M </cpu>
   <MotherBoard Brand="华硕">华硕 H61系列</MotherBoard>
   <Memory Brand="金士顿">金士顿 XXXX</Memory>
   <HardDisk Brand="希捷">希捷500G XXXX</HardDisk>
   <GraphicCard Brand="华硕">华硕显卡XXXX</GraphicCard>
   <Display Brand="LG">LG显示器XXXX</Display>
   <Speakers Brand="漫步者">漫步者XXXX</Speakers>
   <Keyboard Brand="微软">微软键盘XXXX</Keyboard>
   <Mouse Brand="罗技">罗技鼠标XXXX</Mouse>
  </config>
 </product>
 <product Brand="ThinkPad" Serials="联想B470P-IFI">
  <config>
   <cpu Brand="Intel">Intel 酷睿i5 2450M </cpu>
   <MotherBoard Brand="华硕">华硕 H61系列</MotherBoard>
   <Memory Brand="金士顿">金士顿 XXXX</Memory>
   <HardDisk Brand="希捷">希捷500G XXXX</HardDisk>
   <GraphicCard Brand="华硕">华硕显卡XXXX</GraphicCard>
   <Display Brand="LG">LG显示器XXXX</Display>
   <Speakers Brand="漫步者">漫步者XXXX</Speakers>
   <Keyboard Brand="微软">微软键盘XXXX</Keyboard>
   <Mouse Brand="长城">长城鼠标XXXX</Mouse>
  </config>
 </product>
</products>

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14.一个专门负责获取电脑配置单的简单工具类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Xml.Linq;
using System.Xml.XPath;
using System.Text;
using Com.Design.Gof.Builder;
using System.Xml;
using System.IO;
namespace Com.Design.Gof.Builder.Factory
{
  public class ConfigFactory
  {
    /// <summary>
    /// 获取电脑配置单
    /// </summary>
    /// <param name="manufactures">电脑厂商</param>
    /// <param name="SerialName">指定系列</param>
    /// <returns></returns>
    public static Config GetConfig(Manufactures manufactures, string SerialName) {
      Config cfg = new Config();
      //从XML文件，加载电脑配置单
      XDocument doc = XDocument.Parse(File.ReadAllText(AppDomain.CurrentDomain.BaseDirectory + @"\Builder\Data\" + manufactures + ".xml"));
      XPathNavigator nav=doc.CreateNavigator();
      XPathNavigator n=nav.SelectSingleNode("/products/product[@Serials=&#39;" + SerialName.Trim() + "&#39;]");
      n.MoveToChild("config","");
      if (n == null) {
        return cfg;
      }
      string Brand = string.Empty, Serials = string.Empty;
      //CPU
      n.MoveToChild("cpu", "");
      Brand = n.GetAttribute("Brand", "");
      Serials = n.Value;
      cfg.CPU = new CPU { Brand = Brand, SerialsName = Serials };
      //主板MotherBoard
      n.MoveToNext("MotherBoard","");
      Brand = n.GetAttribute("Brand", "");
      Serials = n.Value;
      cfg.MotherBoard = new MotherBoard { Brand = Brand, SerialsName = Serials };
      //内存Memory
      n.MoveToNext("Memory", "");
      Brand = n.GetAttribute("Brand", "");
      Serials = n.Value;
      cfg.Memory = new Memory { Brand = Brand, SerialsName = Serials };
      //硬盘HardDisk
      n.MoveToNext("HardDisk", "");
      Brand = n.GetAttribute("Brand", "");
      Serials = n.Value;
      cfg.HardDisk = new HardDisk { Brand = Brand, SerialsName = Serials };
      //显卡GraphicCard
      n.MoveToNext("GraphicCard", "");
      Brand = n.GetAttribute("Brand", "");
      Serials = n.Value;
      cfg.GraphicCard = new GraphicCard { Brand = Brand, SerialsName = Serials };
      //显示器Display
      n.MoveToNext("Display", "");
      Brand = n.GetAttribute("Brand", "");
      Serials = n.Value;
      cfg.Display = new Display { Brand = Brand, SerialsName = Serials };
      //音箱Speakers
      n.MoveToNext("MotherBoard", "");
      Brand = n.GetAttribute("Brand", "");
      Serials = n.Value;
      cfg.Speakers = new Speakers { Brand = Brand, SerialsName = Serials };
      //键盘Keyboard
      n.MoveToNext("Keyboard", "");
      Brand = n.GetAttribute("Brand", "");
      Serials = n.Value;
      cfg.Keyboard = new Keyboard { Brand = Brand, SerialsName = Serials };
      //鼠标MotherBoard
      n.MoveToNext("Mouse", "");
      Brand = n.GetAttribute("Brand", "");
      Serials = n.Value;
      cfg.Mouse = new Mouse { Brand = Brand, SerialsName = Serials };
      return cfg;
    }
  }
}

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15.一个接口，定义了如何构建一个电脑

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Builder
{
  public interface IBuilder
  {
    /// <summary>
    /// CPU
    /// </summary>
    void BuilderCPU(CPU cpu);
    /// <summary>
    /// 主板
    /// </summary>
    void BuilderMotherBoard(MotherBoard motherBoard);
    /// <summary>
    /// 显示器
    /// </summary>
    void BuilderDisplay(Display display);
    /// <summary>
    /// 内存条
    /// </summary>
    void BuilderMemory(Memory memory);
    /// <summary>
    /// 硬盘
    /// </summary>
    void BuilderHardDisk(HardDisk hardDisk);
    /// <summary>
    /// 显卡
    /// </summary>
    void BuilderGraphicCard(GraphicCard graphicCard);
    /// <summary>
    /// 音箱
    /// </summary>
    void BuilderSpeakers(Speakers speakers);
    /// <summary>
    /// 键盘
    /// </summary>
    void BuilderKeyboard(Keyboard keyboard);
    /// <summary>
    /// 鼠标
    /// </summary>
    void BuilderMouse(Mouse mouse);
    /// <summary>
    /// 获取组装好的电脑
    /// </summary>
    /// <returns></returns>
    Computer GetComputer();
  }
}

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16.联想电脑

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Builder
{
  /// <summary>
  /// ThinkPad品牌厂商
  /// </summary>
  public class ThinkPad:IBuilder
  {
    Computer computer = null;//电脑
    SerialsModel Serials = null;//某个产品系列的具体产品
    public ThinkPad(Manufactures Manufactures, string SerialsName)
    {
      computer = new Computer { Manufactures = Manufactures, Serials = SerialsName };
      Serials = new SerialsModel(Manufactures, SerialsName);
    }
    #region 装配电脑
    /// <summary>
    /// 1.组装 CPU
    /// </summary>
    /// <param name="cpu"></param>
    public void BuilderCPU(CPU cpu)
    {
      computer.CPU = cpu;
    }
    /// <summary>
    /// 2.组装 主板
    /// </summary>
    /// <param name="motherBoard"></param>
    public void BuilderMotherBoard(MotherBoard motherBoard)
    {
      computer.MotherBoard = motherBoard;
    }
    /// <summary>
    /// 3.组装 内存条
    /// </summary>
    /// <param name="display"></param>
    public void BuilderMemory(Memory memory)
    {
      computer.Memory = memory;
    }
    /// <summary>
    ///4.组装 硬盘
    /// </summary>
    /// <param name="display"></param>
    public void BuilderHardDisk(HardDisk hardDisk)
    {
      computer.HardDisk = hardDisk;
    }
    /// <summary>
    /// 5.组装 显卡
    /// </summary>
    /// <param name="display"></param>
    public void BuilderGraphicCard(GraphicCard graphicCard)
    {
      computer.GraphicCard = graphicCard;
    }
    /// <summary>
    /// 6.组装 显示器
    /// </summary>
    /// <param name="display"></param>
    public void BuilderDisplay(Display display)
    {
      computer.Display = display;
    }
    /// <summary>
    /// 7.组装 音箱
    /// </summary>
    /// <param name="display"></param>
    public void BuilderSpeakers(Speakers speakers)
    {
      computer.Speakers = speakers;
    }
    /// <summary>
    /// 8.组装 键盘
    /// </summary>
    /// <param name="display"></param>
    public void BuilderKeyboard(Keyboard keyboard)
    {
      computer.Keyboard = keyboard;
    }
    /// <summary>
    /// 9.组装 鼠标
    /// </summary>
    /// <param name="display"></param>
    public void BuilderMouse(Mouse mouse)
    {
      computer.Mouse = mouse;
    }
    #endregion
    /// <summary>
    /// 获取组装后的电脑
    /// </summary>
    /// <returns></returns>
    public Computer GetComputer() {
      //步骤1--CPU
      BuilderCPU(Serials.Cfg.CPU);
      //步骤2---主板
      BuilderMotherBoard(Serials.Cfg.MotherBoard);
      //步骤3--内存条
      BuilderMemory(Serials.Cfg.Memory);
      //步骤4--硬盘
      BuilderHardDisk(Serials.Cfg.HardDisk);
      //步骤5--显卡
      BuilderGraphicCard(Serials.Cfg.GraphicCard);
      //步骤6--显示器
      BuilderDisplay(Serials.Cfg.Display);
      //步骤7--音箱
      BuilderSpeakers(Serials.Cfg.Speakers);
      //步骤8--键盘
      BuilderKeyboard(Serials.Cfg.Keyboard);
      //步骤9--鼠标
      BuilderMouse(Serials.Cfg.Mouse);
      return computer;
    }
  }
}

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17.索尼电脑

Sony

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Builder
{
  /// <summary>
  /// Sony索尼品牌厂商
  /// </summary>
  public class Sony:IBuilder
  {
    Computer computer = null;//电脑
    SerialsModel Serials = null;//某个产品系列的具体产品
    public Sony(Manufactures Manufactures, string SerialsName)
    {
      computer = new Computer { Manufactures = Manufactures, Serials = SerialsName };
      Serials = new SerialsModel(Manufactures, SerialsName);
    }
    #region 装配电脑
    /// <summary>
    /// 1.组装 CPU
    /// </summary>
    /// <param name="cpu"></param>
    public void BuilderCPU(CPU cpu)
    {
      computer.CPU = cpu;
    }
    /// <summary>
    /// 2.组装 主板
    /// </summary>
    /// <param name="motherBoard"></param>
    public void BuilderMotherBoard(MotherBoard motherBoard)
    {
      computer.MotherBoard = motherBoard;
    }
    /// <summary>
    /// 3.组装 内存条
    /// </summary>
    /// <param name="display"></param>
    public void BuilderMemory(Memory memory)
    {
      computer.Memory = memory;
    }
    /// <summary>
    ///4.组装 硬盘
    /// </summary>
    /// <param name="display"></param>
    public void BuilderHardDisk(HardDisk hardDisk)
    {
      computer.HardDisk = hardDisk;
    }
    /// <summary>
    /// 5.组装 显卡
    /// </summary>
    /// <param name="display"></param>
    public void BuilderGraphicCard(GraphicCard graphicCard)
    {
      computer.GraphicCard = graphicCard;
    }
    /// <summary>
    /// 6.组装 显示器
    /// </summary>
    /// <param name="display"></param>
    public void BuilderDisplay(Display display)
    {
      computer.Display = display;
    }
    /// <summary>
    /// 7.组装 音箱
    /// </summary>
    /// <param name="display"></param>
    public void BuilderSpeakers(Speakers speakers)
    {
      computer.Speakers = speakers;
    }
    /// <summary>
    /// 8.组装 键盘
    /// </summary>
    /// <param name="display"></param>
    public void BuilderKeyboard(Keyboard keyboard)
    {
      computer.Keyboard = keyboard;
    }
    /// <summary>
    /// 9.组装 鼠标
    /// </summary>
    /// <param name="display"></param>
    public void BuilderMouse(Mouse mouse)
    {
      computer.Mouse = mouse;
    }
    #endregion
    /// <summary>
    /// 获取组装后的电脑
    /// </summary>
    /// <returns></returns>
    public Computer GetComputer() {
      //步骤1--CPU
      BuilderCPU(Serials.Cfg.CPU);
      //步骤2---主板
      BuilderMotherBoard(Serials.Cfg.MotherBoard);
      //步骤3--内存条
      BuilderMemory(Serials.Cfg.Memory);
      //步骤4--硬盘
      BuilderHardDisk(Serials.Cfg.HardDisk);
      //步骤5--显卡
      BuilderGraphicCard(Serials.Cfg.GraphicCard);
      //步骤6--显示器
      BuilderDisplay(Serials.Cfg.Display);
      //步骤7--音箱
      BuilderSpeakers(Serials.Cfg.Speakers);
      //步骤8--键盘
      BuilderKeyboard(Serials.Cfg.Keyboard);
      //步骤9--鼠标
      BuilderMouse(Serials.Cfg.Mouse);
      return computer;
    }
  }
}

Salin selepas log masuk

18.三星电脑

三星

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Builder
{
  /// <summary>
  /// Samsung索尼品牌厂商
  /// </summary>
  public class Samsung:IBuilder
  {
    Computer computer = null;//电脑
    SerialsModel Serials = null;//某个产品系列的具体产品
    public Samsung(Manufactures Manufactures, string SerialsName)
    {
      computer = new Computer { Manufactures = Manufactures, Serials = SerialsName };
      Serials = new SerialsModel(Manufactures, SerialsName);
    }
    #region 装配电脑
    /// <summary>
    /// 1.组装 CPU
    /// </summary>
    /// <param name="cpu"></param>
    public void BuilderCPU(CPU cpu)
    {
      computer.CPU = cpu;
    }
    /// <summary>
    /// 2.组装 主板
    /// </summary>
    /// <param name="motherBoard"></param>
    public void BuilderMotherBoard(MotherBoard motherBoard)
    {
      computer.MotherBoard = motherBoard;
    }
    /// <summary>
    /// 3.组装 内存条
    /// </summary>
    /// <param name="display"></param>
    public void BuilderMemory(Memory memory)
    {
      computer.Memory = memory;
    }
    /// <summary>
    ///4.组装 硬盘
    /// </summary>
    /// <param name="display"></param>
    public void BuilderHardDisk(HardDisk hardDisk)
    {
      computer.HardDisk = hardDisk;
    }
    /// <summary>
    /// 5.组装 显卡
    /// </summary>
    /// <param name="display"></param>
    public void BuilderGraphicCard(GraphicCard graphicCard)
    {
      computer.GraphicCard = graphicCard;
    }
    /// <summary>
    /// 6.组装 显示器
    /// </summary>
    /// <param name="display"></param>
    public void BuilderDisplay(Display display)
    {
      computer.Display = display;
    }
    /// <summary>
    /// 7.组装 音箱
    /// </summary>
    /// <param name="display"></param>
    public void BuilderSpeakers(Speakers speakers)
    {
      computer.Speakers = speakers;
    }
    /// <summary>
    /// 8.组装 键盘
    /// </summary>
    /// <param name="display"></param>
    public void BuilderKeyboard(Keyboard keyboard)
    {
      computer.Keyboard = keyboard;
    }
    /// <summary>
    /// 9.组装 鼠标
    /// </summary>
    /// <param name="display"></param>
    public void BuilderMouse(Mouse mouse)
    {
      computer.Mouse = mouse;
    }
    #endregion
    /// <summary>
    /// 获取组装后的电脑
    /// </summary>
    /// <returns></returns>
    public Computer GetComputer() {
      //步骤1--CPU
      BuilderCPU(Serials.Cfg.CPU);
      //步骤2---主板
      BuilderMotherBoard(Serials.Cfg.MotherBoard);
      //步骤3--内存条
      BuilderMemory(Serials.Cfg.Memory);
      //步骤4--硬盘
      BuilderHardDisk(Serials.Cfg.HardDisk);
      //步骤5--显卡
      BuilderGraphicCard(Serials.Cfg.GraphicCard);
      //步骤6--显示器
      BuilderDisplay(Serials.Cfg.Display);
      //步骤7--音箱
      BuilderSpeakers(Serials.Cfg.Speakers);
      //步骤8--键盘
      BuilderKeyboard(Serials.Cfg.Keyboard);
      //步骤9--鼠标
      BuilderMouse(Serials.Cfg.Mouse);
      return computer;
    }
  }
}

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19.美女销售员，指导我们买电脑

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Com.Design.Gof.Builder
{
  /// <summary>
  /// 电脑厂家，销售员指导 消费者 要购买那个 品牌 的电脑
  /// </summary>
  public enum Manufactures
  {
    Acer宏碁=1, Alienware=2,长城=3,
    戴尔=4, 东芝=5, 典籍=6, 多彩=7,
    DCMOFA=8,ESER宇朔=9,富士通=10, 
    方正=11,Gateway华硕=12, 惠普=13,
    海尔=14, 瀚斯宝丽=15,Intel=16,
    技嘉=17,联想=18, 联想ThinkPad=19,
    雷蛇=20, LG=21, 镭波=22,
    msi微星=23, 明唐=24,NEC=25,
    苹果=26,清华=27,同方=28, 
    七喜=29, 七彩虹=30,神舟=31,
    索尼=32, 三星=33, 松下=34,
    史密斯=35, 索泰=36, 神酷=37,
    TerransForce=38,微软=39, 万利达=40,
    新蓝=41,优派=42
  }
  public class Salesman
  {
    /// <summary>
    /// 电脑配置
    /// </summary>
    public void ShowConfig()
    {
      Builder.GetComputer().ShowConfig();
    }
    /// <summary>
    /// 制造商
    /// </summary>
    public IBuilder Builder { get; set; } 
  }
}

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20.主函数调用

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Com.Design.Gof.Builder;
namespace Com.Design.Gof.Test
{
  class Program
  {
    static void Main(string[] args)
    {
      //这位先生，请问你看中哪个型号？这边来看下吧！
      Salesman salesman = new Salesman();
      //美女介绍的  第一台电脑
      salesman.Builder = new ThinkPad(Manufactures.联想ThinkPad, "联想IdeaCentre K330");
      salesman.ShowConfig();  //电脑配置
      //第二台电脑
      salesman.Builder = new Sony(Manufactures.索尼, "索尼E14A17ECW");
      salesman.ShowConfig();  //电脑配置
      //第三台电脑
      salesman.Builder = new Samsung(Manufactures.三星, "三星300E4A-S0G");
      salesman.ShowConfig();  //电脑配置
      Console.ReadKey();
    }
  }
}

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21.运行结果