//王一情
        public int EditCourseTask(string title, int type, string des, DateTime start, DateTime end, int alert, int userid, int taskid)
        {
            if (title == "")
            {
                return(1);
            }
            else if (userid == -1)
            {
                return(2);
            }

            #region 课程日程修改
            DALT_Event_CourseTask dal         = new DALT_Event_CourseTask();
            T_Event_CourseTask    item        = new T_Event_CourseTask();
            T_Event_CourseTask    course_task = new T_Event_CourseTask();
            course_task = dal.GetModel(taskid);

            item.Id          = taskid;
            item.State       = 0;
            item.Type        = type;
            item.Description = des;
            item.StartTime   = start.ToLongTimeString().ToString();
            item.EndTime     = end.ToLongTimeString().ToString();
            item.WPeople     = course_task.WPeople;
            item.CourseId    = course_task.CourseId;
            item.StartWeek   = start;
            item.WeekNum     = 1;

            if (alert == 0)
            {
                item.IsAlert = 0;
            }
            else
            {
                item.IsAlert = 1;
                item.IsAlert = alert;
            }

            #endregion

            bool res = dal.Update(item);

            if (res)
            {
                return(0);
            }
            else
            {
                return(3);
            }
        }