private void panel1_Paint(object sender, PaintEventArgs e)
        {
            Graphics g = e.Graphics;
            Pen pen1 = new Pen(Color.Red);
            Pen pen2 = new Pen(Color.Green);
            SolidBrush brush1 = new SolidBrush(Color.Red);
            SolidBrush brush2 = new SolidBrush(Color.Green);
            for (int i = 0; i < 3; i++)
            {
                if (time >= 0 && time <= 3)
                {
                    g.DrawEllipse(pen2, this.panel1.Width / 2 + i * 25, this.panel1.Height / 2 - 150, 20, 20);
                    g.FillEllipse(brush2, this.panel1.Width / 2 + i * 25, this.panel1.Height / 2 - 150, 20, 20);
                }
                else
                {
                    g.DrawEllipse(pen2, this.panel1.Width / 2 + i * 25, this.panel1.Height / 2 - 150, 20, 20);
                    g.FillEllipse(brush2, this.panel1.Width / 2 + i * 25, this.panel1.Height / 2 - 150, 20, 20);
                }
            }

            Graphics g1 = e.Graphics;
            Pen pen3 = new Pen(Color.White);
            SolidBrush brush3 = new SolidBrush(Color.White);
            for (int i = 0; i < 35; i++)
            {
                g1.DrawRectangle(pen3, 2 + i * 20, this.panel1.Height / 2-120, 10, 150);
                g1.FillRectangle(brush3, 2 + i * 20, this.panel1.Height / 2-120, 10, 150);
            }
        }

private void timer1_Tick(object sender, EventArgs e) 
 { 
   this.panel1_Paint(sender, e); 
 }

private void timer1_Tick(object sender, EventArgs e)
        {
            this.panel1.Refresh();
        }