跑马灯+动态获取当前时间+pictureBox随机赋值

      /// <summary>
        /// 把label 中的内容重新赋值
        /// 
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void timer1_Tick(object sender, EventArgs e)
        {
            string str = label1.Text;
            str = str.Substring(1) + str.Substring(0,1);
            label1.Text = str;
            label2.Text = str;
        }
     

        private void Form2_Load(object sender, EventArgs e)
        {
            string str = label1.Text;
            str = str.Substring(1) + str.Substring(0, 1);
            label1.Text = str;
            label2.Text = str;
            lbltime.Text = DateTime.Now.ToString();
            pictureBox1.Image = Image.FromFile(path[rdm.Next(0, path.Length)]); 
        }

        /// <summary>
        /// 每过一秒，把最新的时间赋值给lbltime.text
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void tmrtime_Tick(object sender, EventArgs e)
        {
            lbltime.Text = DateTime.Now.ToString();        
        }
            Random rdm = new Random();
            string[] path = System.IO.Directory.GetFiles(@"F:\c#\c#初级实验\图片");

        private void tmrpicture_Tick(object sender, EventArgs e)
        {

            pictureBox1.Image = Image.FromFile(path[rdm.Next(0, path.Length)]);
        }