protected void BindZuoyeTonji()
{
string kechengid = Session["kechengid"].ToString();
string username = ((FormsIdentity)HttpContext.Current.User.Identity).Ticket.Name;
string banjiid = Request.QueryString["banjiid"];
DataTable dt = ZuoyeInfo.StuZuoyeHuiZong(int.Parse(kechengid), int.Parse(banjiid));
GridView1.DataSource = dt;
GridView1.DataBind();
}