C#1到C#4使用委托的几种方式

using System;

namespace DelegateDemo

{

    class Program

    {

        private delegate int Cacu(string str);

        static void Main(string[] args)

        {

            //

            Cacu cacu = new Cacu(CacuInstance);

            Console.WriteLine(cacu("Hello,Wrold"));

            //

            Cacu cacu1 = new Cacu(delegate(string str) { return str.Length; });

            Console.WriteLine(cacu1("Hello,Wrold"));

            //

            Cacu cacu2 = new Cacu((str) => { return str.Length; });

            Console.WriteLine(cacu2("Hello,Wrold"));

        }

        static int CacuInstance(string str)

        {

            return str.Length;

        }

    }

}