private void timer1_Tick(object sender, EventArgs e)
        {
                //实时
                Thread thread1 = new Thread(new ThreadStart(alone));
                thread1.IsBackground = true;
                thread1.Start();                        
        } 
private void PHT_Frm_FilmThickness_Load(object sender, EventArgs e)
        {
            double d = 0;
            for (int i = 0; i < 50; i++)
            {
                d = d + 0.1;
                S1[i] = 18 + d;
            }
        }
 
void alone()
        {               
                Thread.Sleep(1000); 
                for (int i = 0; i <= 199; i++)
                {
                    Random ra = new Random();
                    int r = ra.Next(0, 49);
                    Thread.Sleep(10);
                    d1[i] = S1[r];
                }
                //平均值AVG
                label7.Text = "AVG=" + d1.Average().ToString();
                //极差R
                label6.Text = "R=" + (d1.Max() - d1.Min()).ToString();
                //标准差
                double sSum2 = 0;
                for (int j = 0; j < d1.Length; j++)
                {
                    sSum2 += (d1[j] - d1.Average()) * (d1[j] - d1.Average());
                }
                label5.Text = "S=" + Math.Sqrt((sSum2 / d1.Length)).ToString();

                //清空chart2
                for (int i = 0; i < chart2.Series.Count; i++)
                {
                    chart2.Series[i].Points.Clear();
                }

                Series ss2 = new Series();
                chart2.Series.Add(ss2);
                ss2.ChartType = SeriesChartType.FastLine;
                ChartArea chartArea2 = chart2.ChartAreas[0];
                chartArea2.AxisX.Minimum = 0;
                chartArea2.AxisX.Maximum = 200;
                //chartArea2.AxisY.Minimum = 15;
                //chartArea2.AxisY.Maximum = 25d;
                chartArea2.AxisY.IsStartedFromZero = false;
                //ss.BorderWidth = 2;
                ss2.Color = System.Drawing.Color.Red;

                for (int y = 0; y <= 199; y++)
                {
                    //输出
                    ss2.Points.AddXY(y, d1[y]);
                    //膜厚SV
                    label8.Text = "SV=" + d1[y].ToString();
                }            
        }