using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleTest
{
    public delegate void DelgCalc(int iWidth, int iHeight);

    class delegateClass1
    {
        static void Main()
        {
            DelgCalc handler = new DelgCalc(delegateTest.CalcArea);
            handler(6, 4);//计算面积

            handler = new DelgCalc(delegateTest.CalcCircle);
            handler(5, 4);//计算周长

            Console.ReadLine();
        }
    }

    public class delegateTest
    {
        public static void CalcArea(int iWidth, int iHeight)
        {
            Console.WriteLine("宽度：{0}，高度：{1}，面积：{2}", iWidth, iHeight, iWidth * iHeight);
        }

        public static void CalcCircle(int iWidth, int iHeight)
        {
            Console.WriteLine("宽度：{0}，高度：{1}，周长：{2}", iWidth, iHeight, (iWidth+ iHeight)*2);
        }

    }
}

运行效果：

delegate 委托一例(2)_class