类中嵌套定义指向自身的引用（C、C++、C#）或指针（C、C++）

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

namespace ClassEmbeddedTest
{
    class Program
    {
        static void Main(string[] args)
        {
            List<Node> list = new List<Node>();
            Node element1 = new Node();
            element1.value = 1;
            element1.prior = null;

            Node element2 = new Node();
            element2.value = 2;
            element2.prior = element1;

            Node element3 = new Node();
            element3.value = 3;
            element3.prior = element2;
            element3.next = null;

            element1.next = element2;
            element2.next = element3;

            list.Add(element1);
            list.Add(element2);
            list.Add(element3);

            System.Console.WriteLine("列表中的元素数量为：{0}", list.Count);
        }
    }
}