int count = 0;
        Image img;
        Random rand = new Random();
 for (int ii = 0; ii < 1000; ii++)
            {
                img = new Bitmap(120, 70);
                Graphics g = Graphics.FromImage(img);

                int i = rand.Next(10000);
                String s = "" + (char)(rand.Next(26) + 65);
                s += (char)(rand.Next(26) + 65);
                s += i;

                g.DrawString(s, new Font("Tahoma", 22, FontStyle.Regular), Brushes.Black, 5, 10);

                for (int j = 0; j < 10; j++)
                {
                    int x1, y1, x2, y2;
                    x1 = rand.Next(26);
                    x2 = rand.Next(26) + 94;
                    y1 = rand.Next(70);
                    y2 = rand.Next(70);

                    g.DrawLine(new Pen(Color.FromArgb(rand.Next(70), rand.Next(70), rand.Next(70))), x1, y1, x2, y2);

                }

                g.Flush();
                img.Save("D://capcha//" + count + ".PNG", System.Drawing.Imaging.ImageFormat.Png);


                String path, key, phone;
                // id = Int32.Parse(this.textBox_id.Text);
                path = count + ".PNG";
                key = s;


                string cs = @"server=localhost;userid=root;password=1234;database=yyy";
                MySqlConnection conn = new MySqlConnection(cs);

                String sql = @"INSERT INTO capcha VALUES (0, '" + path + "','" + key + "' )";
                MySqlCommand comm = new MySqlCommand(sql, conn);
                conn.Open();
                comm.ExecuteNonQuery();


                conn.Close();

                count++;
            }

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