using System;
using System.Collections.Generic;

using System.Text;

namespace 泛型
{
   
    class Program
    {
        public static void Main(string[] args)
        {
            //创建实例并指定类型
            GenericList<string>list=new GenericList<string>();
            string s="d";
            for(int x=0;x<10;x++)
            {
                list.AddHead(s);
                s+="d";
            
            }
            
            foreach(string i in list)
            {
                Console.Write(i+"");
                Console.WriteLine();
            
            }
            Console.WriteLine("\n完成\n\n");
            
            Console.Read();
        }
        public class GenericList<T>
        {
          private class Node
          {
              public Node(T t)
              {
                next=null;
                data=t;
              }
              private Node next;
              public Node Next
              {
                get
                {
                  return next;
                }
                set
                {
                  next=value;
                }
               
              }
              private T data;
              
              public T Data
              {
                 get
                 {
                   return data;
                 }
                 set
                 {
                   data=value;
                 }
              
              }
          }
        private Node head;
        public GenericList()
        {
          head=null;
        }
        
        public void AddHead(T t)
        {
            Node n=new Node(t);
            n.Next=head;
            head=n;
        
        }
        public IEnumerator<T> GetEnumerator()
        {
           Node current=head;
           while(current!=null)
           {
             yield return current.Data;
             current=current.Next;
           
           }
        }
        
        }
    }
}

高手去那啦？

这个代码是用迭代器输出容器内的内容,完全不懂的话建议先看相关的书啰