public class B
        {
            public delegate int Del();
            public void Test()
            {
                List<Del> dell=new List<Del>();            
                int[] a = { 1,2,3,4,5};
                foreach(int item in a)
                {
                    Del del=delegate(){ return item; };
                    dell.Add(del);
                }
                Console.WriteLine(dell[0]());
                Console.WriteLine(dell[1]());
                Console.WriteLine(dell[2]());
            }
        }

为什么这里打印的 1 2 3
假如把委托理解成函数指针，那么这里应该打印 5 5 5啊