public class Card
{
  private string mianzhi;
  private string leixin;
  public Card(string m, string l)
  {
    mianzhi = m;
    leixin = l;
  }
  public override string ToString()
  {
    return leixin + " " + mianzhi;
  }
}

class Program
{
  private static Card[] allCards = new Card[52];
  private static string[] ms = { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K" };
  private static string[] ls = { "红桃", "方块", "梅花", "黑桃" };
  static void Main(string[] args)
  {
    Init();
    ShowAllCards();
    Console.WriteLine("\r\n");
    Shuffle();
    ShowAllCards();
    Console.ReadKey();
  }
  private static void Shuffle()
  {
    Random r = new Random();
    Card tempCard;
    //依次遍历所有牌与随机位置上的牌交换位置
    for (int i = 0; i < allCards.Length; i++)
    {
      int ran = r.Next(52);
      tempCard = allCards[i];
      allCards[i] = allCards[ran];
      allCards[ran] = tempCard;
    }
  }
  private static void Init()
  {
    for (int i = 0; i < allCards.Length; i++)
    {
      allCards[i] = new Card(ms[i % 13],ls[i%4]);
    }
  }
  private static void ShowAllCards()
  {
    foreach (var item in allCards)
    {
      Console.Write(item.ToString() + " ");
    }
  }
}