private void DvList_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            if (e.ColumnIndex == colDel.Index)
            {
                if (MessageBox.Show("确定要删除吗?", "删除提示", MessageBoxButtons.OKCancel) == DialogResult.Cancel)
                {
                    return;
                }

                try
                {
                    var robot = dvList.CurrentRow.DataBoundItem as WeixinRobot;
                    WeixinRobot.Delete(robot.Id);
                    LoadRobot();
                }
                catch (Exception ex)
                {
                    MessageBox.Show("删除微信机器人失败:" + ex.ToString());
                }
            }
        }