protected void Repeater1_ItemDataBound(object sender, RepeaterItemEventArgs e)
    {
        Label ClassLabel;
        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {
            ClassLabel = (Label)e.Item.FindControl("LB_ClassName");
            try
            {
                //ClassLabel.Text = "a";
                ClassLabel.Text = qhwins.db.SearchFieldByClassId(ClassLabel.Text, 1);
            }
            catch
            {
                ClassLabel.Text = "频道已删除？";
            }
        }

    }