public void Reward(string group, int result)
        {
            HideRank();
            Global.rewardGroup(group, result);

            showGroupMembers(group);

            panel1.Hide();
            panel2.Hide();
            label_title.Text = group + "组成员评分: " + result;
            label_title.Show();
            label_title.Left = (screenWidth - label_title.Width) / 2;
            label_title.Top  = screenHeight * 2 / 10;
            label_title.Font = new System.Drawing.Font("微软雅黑", 36F);

            this.Hide();
            this.Show();
            this.BringToFront();

            //3秒显示,自动隐藏
            System.Windows.Forms.Timer t = new System.Windows.Forms.Timer();
            t.Interval = 4000;
            t.Tick    += new EventHandler(t_Hide);
            t.Start();
        }