本文實例講述了c#設(shè)計模式之builder生成器模式解決帶老婆配置電腦問題。分享給大家供大家參考，具體如下：
一、理論定義
生成器模式 又叫：建造者模式，它 可以 把一個 復雜的對象，分步驟創(chuàng)建。
二、應(yīng)用舉例
需求描述：話說發(fā)工資了，打算去崗頂百腦匯 給老婆配置一臺電腦。
ok，坐著brt，就出發(fā)了。
到崗頂，一美女撲面而來，面帶微笑：先生，請問看中那個品牌，過來看一下嘛！
人家都開口了，盛情難卻，就看下吧。
三、具體編碼
1.cpu
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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; } //其他屬性........... }} |
2.主板
主板motherboard
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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; } //其他屬性........... }} |
3.內(nèi)存條
內(nèi)存條memory
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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; } //其他屬性........... }} |
4.硬盤
硬盤harddisk
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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; } //其他屬性........... }} |
5.顯卡
顯卡graphiccard
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using system;using system.collections.generic;using system.linq;using system.text;namespace com.design.gof.builder{ /// <summary> ///顯卡 graphiccard /// </summary> public class graphiccard { /// <summary> /// 顯卡graphiccard品牌 /// </summary> public string brand { get; set; } /// <summary> /// 顯卡graphiccard系列名 /// </summary> public string serialsname { get; set; } //其他屬性........... }} |
6.顯示器
顯示器display
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using system;using system.collections.generic;using system.linq;using system.text;namespace com.design.gof.builder{ /// <summary> /// display /// </summary> public class display { /// <summary> /// 顯示器品牌 /// </summary> public string brand { get; set; } /// <summary> /// 系列名 /// </summary> public string serialsname { get; set; } //其他屬性........... }} |
7.音箱
音箱speakers
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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; } //其他屬性........... }} |
8.鍵盤
鍵盤keyboard
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using system;using system.collections.generic;using system.linq;using system.text;namespace com.design.gof.builder{ /// <summary> /// 鍵盤keyboard /// </summary> public class keyboard { /// <summary> /// keyboard品牌 /// </summary> public string brand { get; set; } /// <summary> /// 鍵盤keyboard系列名 /// </summary> public string serialsname { get; set; } //其他屬性........... }} |
9.鼠標
鼠標mouse
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using system;using system.collections.generic;using system.linq;using system.text;namespace com.design.gof.builder{ /// <summary> /// 鼠標mouse /// </summary> public class mouse { /// <summary> /// mouse品牌 /// </summary> public string brand { get; set; } /// <summary> /// 鼠標mouse系列名 /// </summary> public string serialsname { get; set; } //其他屬性........... }} |
10.電腦配置單config
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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> /// 顯示器 /// </summary> public display display { get; set; } /// <summary> /// 主板 /// </summary> public motherboard motherboard { get; set; } /// <summary> /// 內(nèi)存條 /// </summary> public memory memory { get; set; } /// <summary> /// 硬盤 /// </summary> public harddisk harddisk { get; set; } /// <summary> /// 顯卡 /// </summary> public graphiccard graphiccard { get; set; } /// <summary> /// 音箱 /// </summary> public speakers speakers { get; set; } /// <summary> /// 鍵盤 /// </summary> public keyboard keyboard { get; set; } /// <summary> /// 鼠標 /// </summary> public mouse mouse { get; set; } }} |
11.一臺電腦computer
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using system;using system.collections.generic;using system.linq;using system.text;namespace com.design.gof.builder{ /// <summary> /// 電腦 /// </summary> public class computer { /// <summary> /// cpu /// </summary> public cpu cpu { get; set; } /// <summary> /// 顯示器 /// </summary> public display display { get; set; } /// <summary> /// 主板 /// </summary> public motherboard motherboard { get; set; } /// <summary> /// 內(nèi)存條 /// </summary> public memory memory { get; set; } /// <summary> /// 硬盤 /// </summary> public harddisk harddisk { get; set; } /// <summary> /// 顯卡 /// </summary> public graphiccard graphiccard { get; set; } /// <summary> /// 音箱 /// </summary> public speakers speakers { get; set; } /// <summary> /// 鍵盤 /// </summary> public keyboard keyboard { get; set; } /// <summary> /// 鼠標 /// </summary> public mouse mouse { get; set; } /// <summary> /// 電腦品牌廠商 /// </summary> public manufactures manufactures { get; set; } /// <summary> /// 屬于的系列 /// </summary> public string serials{ get; set; } /// <summary> /// 顯示電腦配置 /// </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("內(nèi)存條 " + memory.brand + "\t " + memory.serialsname + "系列"); console.writeline("硬盤 " + harddisk.brand + "\t " + harddisk.serialsname + "系列"); console.writeline("顯卡 " + graphiccard.brand + "\t " + graphiccard.serialsname + "系列"); console.writeline("顯示器 " + display.brand + "\t " + display.serialsname + "系列"); console.writeline("音箱 " + speakers.brand + "\t " + speakers.serialsname + "系列"); console.writeline("鍵盤 " + keyboard.brand + "\t " + keyboard.serialsname + "系列"); console.writeline("鼠標 " + mouse.brand + "\t " + mouse.serialsname + "系列"); console.writeline(); console.writeline(); } }} |
12.某一品牌 某一系列 產(chǎn)品的 具體配置
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using system;using system.collections.generic;using system.linq;using system.text;using com.design.gof.builder.factory;namespace com.design.gof.builder{ /// <summary> /// 某一個產(chǎn)品的配置 /// </summary> public class serialsmodel { private config cfg = null; /// <summary> /// 獲取電腦配置單 /// </summary> /// <param name="manufactures"></param> /// <param name="serialsname"></param> public serialsmodel(manufactures manufactures, string serialsname) { cfg= configfactory.getconfig(manufactures, serialsname); } /// <summary> /// 具體配置,每個產(chǎn)品系列都有對應(yīng)的產(chǎn)品配置單 /// </summary> public config cfg { get { return cfg; } } }} |
13.電腦配置單，讀取的是xml文件，一共有三個測試文件，聯(lián)想thinkpad.xml，三星.xml，索尼.xml，下面只顯示聯(lián)想，其他的隨附件下載
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<?xml version="1.0" encoding="utf-8" ?><products> <product brand="lenovo" serials="聯(lián)想ideacentre k330"> <config> <cpu brand="intel">intel 酷睿 i5 2320 </cpu> <motherboard brand="華碩">華碩 h61系列</motherboard> <memory brand="金士頓">金士頓 xxxx</memory> <harddisk brand="希捷">希捷1tb 7200轉(zhuǎn)，sata2</harddisk> <graphiccard brand="華碩">華碩顯卡xxxx</graphiccard> <display brand="lenovo">聯(lián)想顯示器xxxx</display> <speakers brand="lenovo">聯(lián)想xxxx</speakers> <keyboard brand="lenovo">聯(lián)想鍵盤xxxx</keyboard> <mouse brand="微軟">微軟鼠標xxxx</mouse> </config> </product> <product brand="thinkpad" serials="聯(lián)想y670p-ifi"> <config> <cpu brand="intel">intel 酷睿i5 2450m </cpu> <motherboard brand="華碩">華碩 h61系列</motherboard> <memory brand="金士頓">金士頓 xxxx</memory> <harddisk brand="希捷">希捷500g xxxx</harddisk> <graphiccard brand="華碩">華碩顯卡xxxx</graphiccard> <display brand="lg">lg顯示器xxxx</display> <speakers brand="漫步者">漫步者xxxx</speakers> <keyboard brand="微軟">微軟鍵盤xxxx</keyboard> <mouse brand="羅技">羅技鼠標xxxx</mouse> </config> </product> <product brand="thinkpad" serials="聯(lián)想b470p-ifi"> <config> <cpu brand="intel">intel 酷睿i5 2450m </cpu> <motherboard brand="華碩">華碩 h61系列</motherboard> <memory brand="金士頓">金士頓 xxxx</memory> <harddisk brand="希捷">希捷500g xxxx</harddisk> <graphiccard brand="華碩">華碩顯卡xxxx</graphiccard> <display brand="lg">lg顯示器xxxx</display> <speakers brand="漫步者">漫步者xxxx</speakers> <keyboard brand="微軟">微軟鍵盤xxxx</keyboard> <mouse brand="長城">長城鼠標xxxx</mouse> </config> </product></products> |
14.一個專門負責獲取電腦 配置單的 簡單工具類
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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> /// 獲取電腦配置單 /// </summary> /// <param name="manufactures">電腦廠商</param> /// <param name="serialname">指定系列</param> /// <returns></returns> public static config getconfig(manufactures manufactures, string serialname) { config cfg = new config(); //從xml文件，加載電腦配置單 xdocument doc = xdocument.parse(file.readalltext(appdomain.currentdomain.basedirectory + @"\builder\data\" + manufactures + ".xml")); xpathnavigator nav=doc.createnavigator(); xpathnavigator n=nav.selectsinglenode("/products/product[@serials='" + serialname.trim() + "']"); 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 }; //內(nèi)存memory n.movetonext("memory", ""); brand = n.getattribute("brand", ""); serials = n.value; cfg.memory = new memory { brand = brand, serialsname = serials }; //硬盤harddisk n.movetonext("harddisk", ""); brand = n.getattribute("brand", ""); serials = n.value; cfg.harddisk = new harddisk { brand = brand, serialsname = serials }; //顯卡graphiccard n.movetonext("graphiccard", ""); brand = n.getattribute("brand", ""); serials = n.value; cfg.graphiccard = new graphiccard { brand = brand, serialsname = serials }; //顯示器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 }; //鍵盤keyboard n.movetonext("keyboard", ""); brand = n.getattribute("brand", ""); serials = n.value; cfg.keyboard = new keyboard { brand = brand, serialsname = serials }; //鼠標motherboard n.movetonext("mouse", ""); brand = n.getattribute("brand", ""); serials = n.value; cfg.mouse = new mouse { brand = brand, serialsname = serials }; return cfg; } }} |
15.一個接口，定義了如何構(gòu)建一個電腦
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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> /// 顯示器 /// </summary> void builderdisplay(display display); /// <summary> /// 內(nèi)存條 /// </summary> void buildermemory(memory memory); /// <summary> /// 硬盤 /// </summary> void builderharddisk(harddisk harddisk); /// <summary> /// 顯卡 /// </summary> void buildergraphiccard(graphiccard graphiccard); /// <summary> /// 音箱 /// </summary> void builderspeakers(speakers speakers); /// <summary> /// 鍵盤 /// </summary> void builderkeyboard(keyboard keyboard); /// <summary> /// 鼠標 /// </summary> void buildermouse(mouse mouse); /// <summary> /// 獲取組裝好的電腦 /// </summary> /// <returns></returns> computer getcomputer(); }} |
16.聯(lián)想電腦
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using system;using system.collections.generic;using system.linq;using system.text;namespace com.design.gof.builder{ /// <summary> /// thinkpad品牌廠商 /// </summary> public class thinkpad:ibuilder { computer computer = null;//電腦 serialsmodel serials = null;//某個產(chǎn)品系列的具體產(chǎn)品 public thinkpad(manufactures manufactures, string serialsname) { computer = new computer { manufactures = manufactures, serials = serialsname }; serials = new serialsmodel(manufactures, serialsname); } #region 裝配電腦 /// <summary> /// 1.組裝 cpu /// </summary> /// <param name="cpu"></param> public void buildercpu(cpu cpu) { computer.cpu = cpu; } /// <summary> /// 2.組裝 主板 /// </summary> /// <param name="motherboard"></param> public void buildermotherboard(motherboard motherboard) { computer.motherboard = motherboard; } /// <summary> /// 3.組裝 內(nèi)存條 /// </summary> /// <param name="display"></param> public void buildermemory(memory memory) { computer.memory = memory; } /// <summary> ///4.組裝 硬盤 /// </summary> /// <param name="display"></param> public void builderharddisk(harddisk harddisk) { computer.harddisk = harddisk; } /// <summary> /// 5.組裝 顯卡 /// </summary> /// <param name="display"></param> public void buildergraphiccard(graphiccard graphiccard) { computer.graphiccard = graphiccard; } /// <summary> /// 6.組裝 顯示器 /// </summary> /// <param name="display"></param> public void builderdisplay(display display) { computer.display = display; } /// <summary> /// 7.組裝 音箱 /// </summary> /// <param name="display"></param> public void builderspeakers(speakers speakers) { computer.speakers = speakers; } /// <summary> /// 8.組裝 鍵盤 /// </summary> /// <param name="display"></param> public void builderkeyboard(keyboard keyboard) { computer.keyboard = keyboard; } /// <summary> /// 9.組裝 鼠標 /// </summary> /// <param name="display"></param> public void buildermouse(mouse mouse) { computer.mouse = mouse; } #endregion /// <summary> /// 獲取組裝后的電腦 /// </summary> /// <returns></returns> public computer getcomputer() { //步驟1--cpu buildercpu(serials.cfg.cpu); //步驟2---主板 buildermotherboard(serials.cfg.motherboard); //步驟3--內(nèi)存條 buildermemory(serials.cfg.memory); //步驟4--硬盤 builderharddisk(serials.cfg.harddisk); //步驟5--顯卡 buildergraphiccard(serials.cfg.graphiccard); //步驟6--顯示器 builderdisplay(serials.cfg.display); //步驟7--音箱 builderspeakers(serials.cfg.speakers); //步驟8--鍵盤 builderkeyboard(serials.cfg.keyboard); //步驟9--鼠標 buildermouse(serials.cfg.mouse); return computer; } }} |
17.索尼電腦
sony
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using system;using system.collections.generic;using system.linq;using system.text;namespace com.design.gof.builder{ /// <summary> /// sony索尼品牌廠商 /// </summary> public class sony:ibuilder { computer computer = null;//電腦 serialsmodel serials = null;//某個產(chǎn)品系列的具體產(chǎn)品 public sony(manufactures manufactures, string serialsname) { computer = new computer { manufactures = manufactures, serials = serialsname }; serials = new serialsmodel(manufactures, serialsname); } #region 裝配電腦 /// <summary> /// 1.組裝 cpu /// </summary> /// <param name="cpu"></param> public void buildercpu(cpu cpu) { computer.cpu = cpu; } /// <summary> /// 2.組裝 主板 /// </summary> /// <param name="motherboard"></param> public void buildermotherboard(motherboard motherboard) { computer.motherboard = motherboard; } /// <summary> /// 3.組裝 內(nèi)存條 /// </summary> /// <param name="display"></param> public void buildermemory(memory memory) { computer.memory = memory; } /// <summary> ///4.組裝 硬盤 /// </summary> /// <param name="display"></param> public void builderharddisk(harddisk harddisk) { computer.harddisk = harddisk; } /// <summary> /// 5.組裝 顯卡 /// </summary> /// <param name="display"></param> public void buildergraphiccard(graphiccard graphiccard) { computer.graphiccard = graphiccard; } /// <summary> /// 6.組裝 顯示器 /// </summary> /// <param name="display"></param> public void builderdisplay(display display) { computer.display = display; } /// <summary> /// 7.組裝 音箱 /// </summary> /// <param name="display"></param> public void builderspeakers(speakers speakers) { computer.speakers = speakers; } /// <summary> /// 8.組裝 鍵盤 /// </summary> /// <param name="display"></param> public void builderkeyboard(keyboard keyboard) { computer.keyboard = keyboard; } /// <summary> /// 9.組裝 鼠標 /// </summary> /// <param name="display"></param> public void buildermouse(mouse mouse) { computer.mouse = mouse; } #endregion /// <summary> /// 獲取組裝后的電腦 /// </summary> /// <returns></returns> public computer getcomputer() { //步驟1--cpu buildercpu(serials.cfg.cpu); //步驟2---主板 buildermotherboard(serials.cfg.motherboard); //步驟3--內(nèi)存條 buildermemory(serials.cfg.memory); //步驟4--硬盤 builderharddisk(serials.cfg.harddisk); //步驟5--顯卡 buildergraphiccard(serials.cfg.graphiccard); //步驟6--顯示器 builderdisplay(serials.cfg.display); //步驟7--音箱 builderspeakers(serials.cfg.speakers); //步驟8--鍵盤 builderkeyboard(serials.cfg.keyboard); //步驟9--鼠標 buildermouse(serials.cfg.mouse); return computer; } }} |
18.三星電腦
三星
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using system;using system.collections.generic;using system.linq;using system.text;namespace com.design.gof.builder{ /// <summary> /// samsung索尼品牌廠商 /// </summary> public class samsung:ibuilder { computer computer = null;//電腦 serialsmodel serials = null;//某個產(chǎn)品系列的具體產(chǎn)品 public samsung(manufactures manufactures, string serialsname) { computer = new computer { manufactures = manufactures, serials = serialsname }; serials = new serialsmodel(manufactures, serialsname); } #region 裝配電腦 /// <summary> /// 1.組裝 cpu /// </summary> /// <param name="cpu"></param> public void buildercpu(cpu cpu) { computer.cpu = cpu; } /// <summary> /// 2.組裝 主板 /// </summary> /// <param name="motherboard"></param> public void buildermotherboard(motherboard motherboard) { computer.motherboard = motherboard; } /// <summary> /// 3.組裝 內(nèi)存條 /// </summary> /// <param name="display"></param> public void buildermemory(memory memory) { computer.memory = memory; } /// <summary> ///4.組裝 硬盤 /// </summary> /// <param name="display"></param> public void builderharddisk(harddisk harddisk) { computer.harddisk = harddisk; } /// <summary> /// 5.組裝 顯卡 /// </summary> /// <param name="display"></param> public void buildergraphiccard(graphiccard graphiccard) { computer.graphiccard = graphiccard; } /// <summary> /// 6.組裝 顯示器 /// </summary> /// <param name="display"></param> public void builderdisplay(display display) { computer.display = display; } /// <summary> /// 7.組裝 音箱 /// </summary> /// <param name="display"></param> public void builderspeakers(speakers speakers) { computer.speakers = speakers; } /// <summary> /// 8.組裝 鍵盤 /// </summary> /// <param name="display"></param> public void builderkeyboard(keyboard keyboard) { computer.keyboard = keyboard; } /// <summary> /// 9.組裝 鼠標 /// </summary> /// <param name="display"></param> public void buildermouse(mouse mouse) { computer.mouse = mouse; } #endregion /// <summary> /// 獲取組裝后的電腦 /// </summary> /// <returns></returns> public computer getcomputer() { //步驟1--cpu buildercpu(serials.cfg.cpu); //步驟2---主板 buildermotherboard(serials.cfg.motherboard); //步驟3--內(nèi)存條 buildermemory(serials.cfg.memory); //步驟4--硬盤 builderharddisk(serials.cfg.harddisk); //步驟5--顯卡 buildergraphiccard(serials.cfg.graphiccard); //步驟6--顯示器 builderdisplay(serials.cfg.display); //步驟7--音箱 builderspeakers(serials.cfg.speakers); //步驟8--鍵盤 builderkeyboard(serials.cfg.keyboard); //步驟9--鼠標 buildermouse(serials.cfg.mouse); return computer; } }} |
19.美女銷售員，指導我們買電腦
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using system;using system.collections.generic;using system.linq;using system.text;namespace com.design.gof.builder{ /// <summary> /// 電腦廠家，銷售員指導 消費者 要購買那個 品牌 的電腦 /// </summary> public enum manufactures { acer宏碁=1, alienware=2,長城=3, 戴爾=4, 東芝=5, 典籍=6, 多彩=7, dcmofa=8,eser宇朔=9,富士通=10, 方正=11,gateway華碩=12, 惠普=13, 海爾=14, 瀚斯寶麗=15,intel=16, 技嘉=17,聯(lián)想=18, 聯(lián)想thinkpad=19, 雷蛇=20, lg=21, 鐳波=22, msi微星=23, 明唐=24,nec=25, 蘋果=26,清華=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,微軟=39, 萬利達=40, 新藍=41,優(yōu)派=42 } public class salesman { /// <summary> /// 電腦配置 /// </summary> public void showconfig() { builder.getcomputer().showconfig(); } /// <summary> /// 制造商 /// </summary> public ibuilder builder { get; set; } }} |
20.主函數(shù)調(diào)用
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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) { //這位先生，請問你看中哪個型號？這邊來看下吧！ salesman salesman = new salesman(); //美女介紹的 第一臺電腦 salesman.builder = new thinkpad(manufactures.聯(lián)想thinkpad, "聯(lián)想ideacentre k330"); salesman.showconfig(); //電腦配置 //第二臺電腦 salesman.builder = new sony(manufactures.索尼, "索尼e14a17ecw"); salesman.showconfig(); //電腦配置 //第三臺電腦 salesman.builder = new samsung(manufactures.三星, "三星300e4a-s0g"); salesman.showconfig(); //電腦配置 console.readkey(); } }} |
21.運行結(jié)果
22.總結(jié)
本來想把每個電腦配件再細化，發(fā)現(xiàn)工程很大，電腦 產(chǎn)品的屬性很多，所以只列出2個字段。
附件里面包括了程序源碼。也包括其他項目的測試，有控制臺，有web。
附：完整實例代碼點擊此處本站下載。
希望本文所述對大家c#程序設(shè)計有所幫助。
原文鏈接：http://www.cnblogs.com/HCCZX/archive/2012/08/08/2628452.html
