static void Main(string[] args)
      {
          int m = Convert.ToInt32(Console.ReadLine());
          for (int i = 1; i <= m; i++)
          {
              for (int j = 1; j <= i; j++)
              {
                  Console.Write(j);
              }
              for (int j = i-1; j >=1; j--)
              {
                  Console.Write(j);
              }
              Console.Write('\n');
          }
          Console.ReadLine();
      }

------解决方案--------------------
探讨


我要的是那个窗体中的，是面向对象的

哈哈哈哈哈哈哈，笑死我了。楼主，别学这个了，不适合你。


------解决方案--------------------
我想第二道题可以做一个循环链表，然后遍历表，每到第n个元素时就删除该元素，直到剩下的元素个数小n为止．

------解决方案--------------------
第二道题：
C# code
namespace ConsoleApplication5
{
    class Node
    {
        public int Value;
        public Node Next, Prior;
        public Node(int value)
        {
            Value = value;
        }
    }

    class Link
    {
        private Node Head, Tail;
        private int Amount;

        public Link()
        {
            for (int i = 1; i <= 100; i++)
            {
                Add(new Node(i));
            }
            Tail.Next = Head;
            Head.Prior = Tail;
        }

        private void Add(Node node)
        {
            if (Head == null)
                Head = Tail = node;
            else
            {
                node.Prior = Tail;
                Tail.Next = node;
                Tail = node;
            }
            Amount++;
        }

        public void DispNode()
        {
            Node node = Head; 
            for(int i = 1;i<=Amount;i++)
            {
                Console.WriteLine(node.Value);
                node = node.Next;
            }
        }

        private void Delete(Node node)
        {
            if (Head == node)
                Head = node.Next;
            node.Prior.Next = node.Next;
            node.Next.Prior = node.Prior;
            Amount--;
        }

        public void Account(int n)
        {
            Node node = Head;
            int i = 1;
            while (Amount >= n)
            {
                if (i++ == n)
                {
                    Delete(node);
                    i = 1;
                }
                node = node.Next;
            }
        }
            
    }
    
    class Program
    {
        static void Main(string[] args)
        {
            Link link = new Link();
            link.Account(5);
            link.DispNode();

            Console.ReadKey();
        }
    }