private void Form1_Load(object sender, EventArgs e)
        {
            ApplicationHelper.CapturedExit <winMain>(this, () =>
            {
                if (MessageBox.Show("确认退出?", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
                {
                    return(true);
                }

                return(false);
            });
        }