我写了一个动态加载label的方法，同时我想让他们都闪烁，该怎么办啊？ 求助大大门 ！！！

 
        Label lbl;
        public void painLabel()
        {
            for (int r = 1; r <= 5; r++)
            {
                for (int c = 1; c <= 6; c++)
                {
                    lbl = new Label();
                    lbl.Name = "lbl" + r + "-" + c;
                    lbl.Text = r + "-" + c;
                    lbl.AutoSize = true;
                    lbl.Font = new Font("宋体", 13.75F,System.Drawing.FontStyle.Bold);
                    lbl.ForeColor = System.Drawing.Color.Blue;
                    lbl.Location = new Point((90 * c), (50 * r));
                    this.Controls.Add(lbl);
                 }
            }
         }

label的字体或者背景变色就可以。。