本文实例讲述了C#职责链模式。分享给大家供大家参考。具体如下：
ConcreteHandler1.cs如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
public class ConcreteHandler1:Handler
{
public override void HandRequest(int request)
{
if(request>0&&request<10)
{
Console.WriteLine("{0} 处理请求 {1}",this.GetType().Name,request);
}
else if(successor!=null)
{
successor.HandRequest(request);
}
}
}
}
ConcreteHandler2.cs如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
public class ConcreteHandler2:Handler
{
public override void HandRequest(int request)
{
if (request > 10 && request < 20)
{
Console.WriteLine("{0} 处理请求 {1}", this.GetType().Name, request);
}
else if (successor != null)
{
successor.HandRequest(request);
}
}
}
}
ConcreteHandler3.cs如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
public class ConcreteHandler3:Handler
{
public override void HandRequest(int request)
{
if (request > 20 && request < 30)
{
Console.WriteLine("{0} 处理请求 {1}", this.GetType().Name, request);
}
else if (successor != null)
{
successor.HandRequest(request);
}
}
}
}
Handler.cs如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
public abstract class Handler
{
protected Handler successor;
public void SetSuccessor(Handler successor)
{
this.successor = successor;
}
public abstract void HandRequest(int request);
}
}
Program.cs如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
Handler h1 = new ConcreteHandler1();
Handler h2 = new ConcreteHandler2();
Handler h3 = new ConcreteHandler3();
h1.SetSuccessor(h2);
h2.SetSuccessor(h3);
int[] requests = {2,5,14,22,18,3,27,20};
foreach(int request in requests)
{
h1.HandRequest(request);
}
Console.ReadKey();
}
}
}
希望本文所述对大家的C#程序设计有所帮助。