private void button_测试Queue结合多线程_Click(object sender, EventArgs e)
{
  Console.WriteLine("初始化队列");
  queue = new Queue<string>();
  string[] cars = new string[]{"宝马","奔驰",
    "奥迪","东风","劳斯莱斯"};
  foreach (string str in cars)
  {
    queue.Enqueue(str);
    Console.WriteLine("入队列-{0}", str);
  }
  Console.WriteLine();
  Console.ForegroundColor = ConsoleColor.Red;
  Thread th = new Thread(new ThreadStart(printQueue));
  th.IsBackground = true; //后台运行，主窗体关闭后，可退出程序
  th.Start();
}
private void printQueue()
{
  while (true)
  {
    if (queue.Count > 0)
    {
      Console.WriteLine("出队列-{0}", queue.Dequeue());
    }
  }
}