//统计此系每周缺勤人数,放到一张表,每周一行
        /// <summary>
        ///
        /// </summary>
        /// <param name="Department">当前系名</param>
        /// <param name="week">当前周次</param>
        /// <param name="weekEnd">从几周开始</param>
        /// <returns>返回一个系所有考勤统计</returns>
        private static DataTable InitialDataTable(string Department, int week, int weekEnd)
        {
            DataTable     dt  = CreateDateTable();//储存每周人数情况
            StringBuilder sbl = new StringBuilder();

            //当前周次
            for (int i = week; i > weekEnd - 1; i--)
            {
                sbl.Remove(0, sbl.Length);
                DataRow drs = dt.NewRow();
                drs[0] = i;//周次
                drs[1] = Department;
                sbl.Append("SELECT COUNT(*) AS LateMount FROM TabStudentAttendance where StudentDepartment = '" + Department + "' and CourseAllWeek = " + i + " and AttendanceType = '迟到' ");
                sbl.Append("SELECT COUNT(*) AS EarlyMount FROM TabStudentAttendance where StudentDepartment = '" + Department + "' and CourseAllWeek = " + i + " and AttendanceType = '早退' ");
                sbl.Append("SELECT COUNT(*) AS EarlyMount FROM TabStudentAttendance where StudentDepartment = '" + Department + "' and CourseAllWeek = " + i + " and AttendanceType = '旷课' ");
                sbl.Append("SELECT COUNT(*) AS EarlyMount FROM TabStudentAttendance where StudentDepartment = '" + Department + "' and CourseAllWeek = " + i + " and AttendanceType = '请假' ");
                DataSet ds = AddSQLStringToDAL.GetDsBySql(sbl.ToString());

                int Late = Convert.ToInt32(ds.Tables[0].Rows[0][0]);       //获取此系此周迟到的人数
                drs[2] = Late;
                int Early = Convert.ToInt32(ds.Tables[1].Rows[0][0]);      //获取此系此周早退的人数
                drs[3] = Early;
                int Attendance = Convert.ToInt32(ds.Tables[2].Rows[0][0]); //获取此系此周旷课的人数
                drs[4] = Attendance;
                int Leave = Convert.ToInt32(ds.Tables[3].Rows[0][0]);      //获取此系此周请假的人数
                drs[5] = Leave;
                drs[6] = Late + Early + Attendance + Leave;                //缺勤的总人数
                dt.Rows.Add(drs);
            }
            return(dt);
        }
        /// <summary>
        ///
        /// </summary>
        /// <param name="Department"></param>
        /// <param name="startWeek"></param>
        /// <param name="EndWeek"></param>
        private static string[] AllWeekInitial(string Department, int startWeek, int EndWeek)
        {
            StringBuilder sbder = new StringBuilder();

            sbder.Remove(0, sbder.Length);
            sbder.Append("SELECT COUNT(*) AS LateMount FROM TabStudentAttendance where StudentDepartment = '" + Department + "' and CourseAllWeek in" + SqlList(startWeek, EndWeek) + " and AttendanceType = '迟到' ");
            sbder.Append("SELECT COUNT(*) AS LateMount FROM TabStudentAttendance where StudentDepartment = '" + Department + "' and CourseAllWeek in" + SqlList(startWeek, EndWeek) + " and AttendanceType = '早退' ");
            sbder.Append("SELECT COUNT(*) AS LateMount FROM TabStudentAttendance where StudentDepartment = '" + Department + "' and CourseAllWeek in" + SqlList(startWeek, EndWeek) + " and AttendanceType = '旷课' ");
            sbder.Append("SELECT COUNT(*) AS LateMount FROM TabStudentAttendance where StudentDepartment = '" + Department + "' and CourseAllWeek in" + SqlList(startWeek, EndWeek) + " and AttendanceType = '请假' ");
            sbder.Append("SELECT COUNT(*) AS LateMount FROM TabStudentAttendance where StudentDepartment = '" + Department + "' and CourseAllWeek in" + SqlList(startWeek, EndWeek) + " ");//所有

            DataSet ds = AddSQLStringToDAL.GetDsBySql(sbder.ToString());

            //所有周缺勤人数
            string[] departmentInfo = { ds.Tables[0].Rows[0][0].ToString(), ds.Tables[1].Rows[0][0].ToString(), ds.Tables[2].Rows[0][0].ToString(), ds.Tables[3].Rows[0][0].ToString(), ds.Tables[4].Rows[0][0].ToString() };
            return(departmentInfo);
        }