this.timer1 = new System.Windows.Forms.Timer(this.components);
 this.timer1.Enabled = true;
 this.timer1.Interval = 2000;
 this.timer1.Tick += new System.EventHandler(this.timer1_Tick);

 public partial class Form1 : Form
    {
        private int i = 0;
        public Form1()
        {
            InitializeComponent();
            Timer timer1 = new Timer();
            timer1.Enabled = true;
            timer1.Interval = 1000;
            timer1.Tick += new System.EventHandler(this.timer1_Tick);
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            i++;
            textBox1.Text += i + "S" + "\r\n";
        }

    }

  public static bool Delay(int delayTime)
        {
            DateTime now = DateTime.Now;
            int s;
            do
            {
                TimeSpan spand = DateTime.Now - now;
                s = spand.Seconds;
                Application.DoEvents();
            }
            while (s < delayTime);
            return true;
        }

 public void hh()
        {
            for (int i = 0; i < 5; i++)
            {
                textBox1.Text += "抓图" + i + "\r\n";
              if(Delay(5))
              {
                  continue;
              }
            }
        }