private void timer1_Tick(object sender, EventArgs e)
{
Random ra = new Random();
j = ra.Next(1, 10);//生成一个0到10之间的随机数
pictureBox1.Image = Image.FromStream(Assembly.GetExecutingAssembly().GetManifestResourceStream("Winsdutent.img.stu" + j + ".jpg"));
}
private void button1_Click(object sender, EventArgs e)
{
timer1.Start();//计时器开始
}
private void button2_Click(object sender, EventArgs e)
{
timer1.Stop();//计时器开始
}![图片说明](https://img-ask.csdn.net/upload/201612/21/1482307297_946229.png)