如何使鼠标移动到按钮上，使按钮有框框的效果

Question

谢谢

Answer 1

通过onmouseover=“样式"      样式中可改变按钮任意样式

Answer 2

记得复制代码的时候将这2个事件勾挂到你的button的mouseenter和leave上去就看到效果罗
  Graphics g;
        private void button1_MouseEnter(object sender, EventArgs e)
        {
           g = this.CreateGraphics();
            //this.button1.Bounds.Width = 2;
            Rectangle rc = this.button1.Bounds;
            rc.X -= 2;
            rc.Y -= 2;
            rc.Width += 4;
            rc.Height += 4;
            SolidBrush sb = new SolidBrush(Color.Red);
            g.FillRectangle(sb, rc);            
        }        private void button1_MouseLeave(object sender, EventArgs e)
        {
            g.Clear(this.BackColor);
        }