/// <summary>
        /// 匯入前準備
        /// </summary>
        /// <param name="Option"></param>
        public override void Prepare(ImportOption Option)
        {
            _Option           = Option;
            _HighConcernDict  = UDTTransfer.GetHighConcernDictAll();
            _StudentNumIDDict = UDTTransfer.GetStudentNumIDDictAll();
            // 取得學生資料
            List <string>        studentIDList = _StudentNumIDDict.Values.ToList();
            List <StudentRecord> recList       = Student.SelectByIDs(studentIDList);

            foreach (StudentRecord rec in recList)
            {
                _StudentRecDict.Add(rec.ID, rec);
            }
        }