C#的委託

標籤：

using System;using System.Collections;using System.Collections.Generic;using System.IO;namespace codeTest{    delegate void NumDelegate(int num);    class Program    {        static void Main(string[] args)        {            AClass _a = new AClass();            _a.cwdelegate = _a.AddNum;            _a.cwdelegate(20);            NumDelegate num20delegate = new NumDelegate(Add20);            Console.WriteLine("-------------------------------------------");            NumDelegate adddelegate =new NumDelegate(_a.AddNum);            NumDelegate subdelegate = new NumDelegate(_a.SubNum);            NumDelegate num30delegate = adddelegate + subdelegate;            num30delegate(30);            Console.WriteLine("-------------------------------------------");            num30delegate += num20delegate;            num30delegate(30);            Console.WriteLine("-------------------------------------------");            num30delegate += adddelegate;            //去掉最後一個adddelegate            num30delegate -= adddelegate;            num30delegate(30);            Console.ReadLine();        }        static void Add20(int num)        {            Console.WriteLine(string.Format("Add20: {0}", num));        }    }    class AClass    {        public int result = 100;        public delegate void CWDelegate(int num);        public CWDelegate cwdelegate;        public void AddNum(int num)        {            Console.WriteLine(string.Format("AddNum: {0}",num));        }        public void SubNum(int num)        {            Console.WriteLine(string.Format("SubNum: {0}", num));        }    }}

 

C#的委託