private void start_0_Click(object sender, EventArgs e)
        {
            if (click == 0)
            {
                click++;

                Semaphore semaphore = new Semaphore();
                lse[0] = semaphore;
                Train t = new Train(pb_0, new Point(0, 4), 1, semaphore);
                t.Start();
                Thread thread = new Thread(new ThreadStart(t.Start));
                thread.Start();
            }
        }