1 /*  2  * 建造者模式是一种创建型模式，它主要是应对项目中一些复杂对象的创建工作。  3  * 所谓“复杂对象”，是指此对象中还含有其它的子对象。  4  * 我们现在定义一个场景：汽车生产必须包含车轮(Wheel)、油箱(OilBox)和车身(Body)，  5  * 应用建造者模式，用C#控制台应用程序实现该设计，构建BMW品牌和BenZ品牌汽车生产。  6  */  7 using System;  8 using System.Collections.Generic;  9 using System.Linq; 10 using System.Text; 11  12 namespace Builder 13 { 14     class Car 15     { 16         IList
     
       parts = new List
      
       (); 17         public void Add(string part) 18         { 19             parts.Add(part); 20         } 21         public void Show() 22         { 23             Console.WriteLine("\n创建产品\nBegin"); 24             foreach (string part in parts) 25             { 26                 Console.WriteLine("创建:"+part); 27             } 28             Console.WriteLine("End"); 29         } 30     } 31     abstract class Builder 32     { 33         public abstract void BuildWheel(); 34         public abstract void BuildOilBox(); 35         public abstract void BuildBody(); 36         public abstract Car GetProduct(); 37     } 38     class BMWBuilder : Builder 39     { 40         private Car car = new Car(); 41         public override void BuildWheel() 42         { 43             car.Add("BMW-Wheel"); 44         } 45         public override void BuildOilBox() 46         { 47             car.Add("BMW-OilBox"); 48         } 49         public override void BuildBody() 50         { 51             car.Add("BMW-Body"); 52         } 53         public override Car GetProduct() 54         { 55             return car; 56         } 57  58     } 59     class BenZBuilder : Builder 60     { 61         private Car car = new Car(); 62         public override void BuildWheel() 63         { 64             car.Add("BenZ-Wheel"); 65         } 66         public override void BuildOilBox() 67         { 68             car.Add("BenZ-OilBox"); 69         } 70         public override void BuildBody() 71         { 72             car.Add("BenZ-Body"); 73         } 74         public override Car GetProduct() 75         { 76             return car; 77         } 78  79     } 80     class Director 81     { 82         public void Construct(Builder bd) 83         { 84             bd.BuildWheel(); 85             bd.BuildOilBox(); 86             bd.BuildBody(); 87         } 88     } 89     class Program 90     { 91         static void Main(string[] args) 92         { 93             Director dt = new Director(); 94             Builder bmw = new BMWBuilder(); 95             Builder benz = new BenZBuilder(); 96  97             dt.Construct(bmw); 98             Car car1 = bmw.GetProduct(); 99             car1.Show();100 101             dt.Construct(benz);102             Car car2 = benz.GetProduct();103             car2.Show();104         }105     }106 }