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1 using System; 2 3 namespace Visitor 4 { 5 /// <summary> 6 /// 作者:bzyzhang 7 /// 时间:2016/6/4 6:29:39 8 /// 博客地址:http://www.cnblogs.com/bzyzhang/ 9 /// Element说明:本代码版权归bzyzhang所有,使用时必须带上bzyzhang博客地址 10 /// </summary> 11 public abstract class Element 12 { 13 public abstract void Accept(Visitor visitor); 14 } 15 }
1 using System; 2 3 namespace Visitor 4 { 5 /// <summary> 6 /// 作者:bzyzhang 7 /// 时间:2016/6/4 6:31:19 8 /// 博客地址:http://www.cnblogs.com/bzyzhang/ 9 /// ConcreteElementA说明:本代码版权归bzyzhang所有,使用时必须带上bzyzhang博客地址 10 /// </summary> 11 public class ConcreteElementA:Element 12 { 13 public override void Accept(Visitor visitor) 14 { 15 visitor.VisitConcreteElementA(this); 16 } 17 18 public void OperationA() 19 { } 20 } 21 }
1 using System; 2 3 namespace Visitor 4 { 5 /// <summary> 6 /// 作者:bzyzhang 7 /// 时间:2016/6/4 6:31:52 8 /// 博客地址:http://www.cnblogs.com/bzyzhang/ 9 /// ConcreteElementB说明:本代码版权归bzyzhang所有,使用时必须带上bzyzhang博客地址 10 /// </summary> 11 public class ConcreteElementB:Element 12 { 13 public override void Accept(Visitor visitor) 14 { 15 visitor.VisitConcreteElementB(this); 16 } 17 18 public void OperationB() 19 { } 20 } 21 }
1 using System; 2 3 namespace Visitor 4 { 5 /// <summary> 6 /// 作者:bzyzhang 7 /// 时间:2016/6/4 6:28:19 8 /// 博客地址:http://www.cnblogs.com/bzyzhang/ 9 /// Visitor说明:本代码版权归bzyzhang所有,使用时必须带上bzyzhang博客地址 10 /// </summary> 11 public abstract class Visitor 12 { 13 public abstract void VisitConcreteElementA(ConcreteElementA concreteElementA); 14 public abstract void VisitConcreteElementB(ConcreteElementB concreteElementB); 15 } 16 }
1 using System; 2 3 namespace Visitor 4 { 5 /// <summary> 6 /// 作者:bzyzhang 7 /// 时间:2016/6/4 6:30:34 8 /// 博客地址:http://www.cnblogs.com/bzyzhang/ 9 /// ConcreteVisitor1说明:本代码版权归bzyzhang所有,使用时必须带上bzyzhang博客地址 10 /// </summary> 11 public class ConcreteVisitor1:Visitor 12 { 13 public override void VisitConcreteElementA(ConcreteElementA concreteElementA) 14 { 15 Console.WriteLine("{0}被{1}访问",concreteElementA.GetType().Name ,this.GetType().Name); 16 } 17 18 public override void VisitConcreteElementB(ConcreteElementB concreteElementB) 19 { 20 Console.WriteLine("{0}被{1}访问", concreteElementB.GetType().Name, this.GetType().Name); 21 } 22 } 23 }
1 using System; 2 3 namespace Visitor 4 { 5 /// <summary> 6 /// 作者:bzyzhang 7 /// 时间:2016/6/4 6:34:58 8 /// 博客地址:http://www.cnblogs.com/bzyzhang/ 9 /// ConcreteVisitor2说明:本代码版权归bzyzhang所有,使用时必须带上bzyzhang博客地址 10 /// </summary> 11 public class ConcreteVisitor2:Visitor 12 { 13 public override void VisitConcreteElementA(ConcreteElementA concreteElementA) 14 { 15 Console.WriteLine("{0}被{1}访问", concreteElementA.GetType().Name, this.GetType().Name); 16 } 17 18 public override void VisitConcreteElementB(ConcreteElementB concreteElementB) 19 { 20 Console.WriteLine("{0}被{1}访问", concreteElementB.GetType().Name, this.GetType().Name); 21 } 22 } 23 }
1 using System; 2 using System.Collections.Generic; 3 4 namespace Visitor 5 { 6 /// <summary> 7 /// 作者:bzyzhang 8 /// 时间:2016/6/4 6:38:05 9 /// 博客地址:http://www.cnblogs.com/bzyzhang/ 10 /// ObjectStructure说明:本代码版权归bzyzhang所有,使用时必须带上bzyzhang博客地址 11 /// </summary> 12 public class ObjectStructure 13 { 14 private List<Element> elements = new List<Element>(); 15 16 public void Attach(Element element) 17 { 18 elements.Add(element); 19 } 20 21 public void Detach(Element element) 22 { 23 elements.Remove(element); 24 } 25 26 public void Accept(Visitor visitor) 27 { 28 foreach (Element element in elements) 29 { 30 element.Accept(visitor); 31 } 32 } 33 } 34 }
1 namespace Visitor 2 { 3 class Program 4 { 5 static void Main(string[] args) 6 { 7 ObjectStructure objectStructure = new ObjectStructure(); 8 9 objectStructure.Attach(new ConcreteElementA()); 10 objectStructure.Attach(new ConcreteElementB()); 11 12 ConcreteVisitor1 concreteVisitor1 = new ConcreteVisitor1(); 13 ConcreteVisitor2 concreteVisitor2 = new ConcreteVisitor2(); 14 15 objectStructure.Accept(concreteVisitor1); 16 objectStructure.Accept(concreteVisitor2); 17 } 18 } 19 }
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原文地址:http://www.cnblogs.com/bzyzhang/p/5558054.html