1. private void Form3_Load(object sender, EventArgs e)
  2. {
  3. //打开窗体的时候显示第一张图片
  4. this.pictureBox1.Image = this.imageList1.Images[0];
  5. //启动timer控件
  6. this.timer1.Start();
  7. }
  8. //计数器
  9. private int currIndex = 0;
  10. private bool flag = true;//开关
  11. private void timer1_Tick(object sender, EventArgs e)
  12. {
  13. if (flag)
  14. {
  15. //判断是否为第一张
  16.        //不是第一张
  17. if (currIndex > 0)
  18. //显示上一张图片
  19. currIndex--;
  20. else
  21. //是第一张
  22. flag = false;
  23. }
  24. else
  25. {
  26. //判断是否为第一张
  27.        //不是最后一张
  28. if (currIndex < this.imageList1.Images.Count - 1)
  29. //显示下下一张图片
  30. currIndex++;
  31. else//是最后一张
  32. flag = true;
  33. }
  34. this.pictureBox1.Image = this.imageList1.Images[currIndex];
  35. }
  36. private bool flag1 = true;
  37. private void pictureBox1_Click(object sender, EventArgs e)
  38. {
  39. if (flag1)
  40. {
  41.        //停止
  42. timer1.Stop();
  43. flag1 = false;
  44. }
  45. else
  46. {
  47. //启动
  48. timer1.Start();
  49. flag1 = true;
  50. }
  51. }
05-08 15:42