protected void BtnScore_Click(object sender, EventArgs e) { DateTime nowtime1 = DateTime.Now; LearnSite.BLL.Students stu = new LearnSite.BLL.Students(); stu.ThisTeamScores();//批量更新所教所有班级当前学期总积分 DateTime nowtime2 = DateTime.Now; System.Threading.Thread.Sleep(1000); showstudents(); Labelmsg.Text = "统计用时:" + LearnSite.Common.Computer.Datagone(nowtime1, nowtime2) + "秒"; }