Delegate的几种方法

 

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

namespace ConsoleApplication1
{
    class Operation
    {
        public static double thribble(double value)
        {
            Console.Write(value * value * value);
            return (value * value * value);
            
        }
    }
}

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

namespace ConsoleApplication1
{
    public delegate double Calculate(double value);

    class Program
    {
        public static bool some = true;
        static void Main(string[] args)
        {
            double value = 5;
            //匿名方法_1
            Calculate mulByTwo = delegate(double val) { return val * 2; };
            Work(mulByTwo, value);
            //匿名方法_2,实质是直接将匿名方法中带入函数；
            Work(delegate(double kk)
            {
                Console.Write(kk * kk * kk);
                return (kk * kk * kk);
            }, value);
            //显式调用
            Calculate cube = new Calculate(Operation.thribble);
            Work(cube, value);
            Console.Read();
        }
        static void Work(Calculate action, double value)
        {
            Console.WriteLine("The number is:{0}", action(value));

        }
    }
}