WinForm实现窗体淡出效果

#region 【WinForm实现窗体淡出效果】

        private void picExit_Click(object sender, EventArgs e)
        {
            timer1.Start();
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            if (Opacity >= 0.025)
            {
                Opacity -= 0.025;
            }
            else
            {
                timer1.Stop();
                Environment.Exit(0);
            }
        }

#endregion