01.int i = 1;
02.void LoadPicture()
03. {
04.
05. PictureBox1.Image = Image.FromFile(@"Path ที่เก็บรูป\" + new Random().Next(1, 20) + ".jpg");
06. System.Threading.Thread.Sleep(100);
07. if (i >= 21) Close();
08. }
09.private void Form2_Load(object sender, EventArgs e)
10. {
11. LoadPicture();
12. }
13.private void button1_Click(object sender, EventArgs e)
14. {
15.
16. LoadPicture();
17.
18. }
