public static List<OCMoocStudyStudent> OCMoocStudents_SendMsg_Batch(int OCID, int OCClassID, int Rate, string StudentUserIDs, string Title, string Conten, bool IsForMail, bool IsForSMS)
        {
            if (!UserService.OC_IsRole(OCID))
            {
                return null;
            }

            int SendUserID = UserService.CurrentUser.UserID;

            IStudyProgressBLL studyprogressbll = new StudyProgressBLL();
            List<OCMoocStudyStudent> OCMoocStudents_SendMsg = studyprogressbll.OCMoocStudents_SendMsg(OCID, OCClassID, Rate, StudentUserIDs, Title, Conten, SendUserID, IsForMail, IsForSMS);
            return OCMoocStudents_SendMsg;
        }
        public static List<OCMoocStudyStudent> OCMoocStudents_SendMsg(int OCID, int OCClassID, string StudentUserIDs)
        {
            if (!UserService.OC_IsRole(OCID))
            {
                return null;
            }

            int SendUserID = UserService.CurrentUser.UserID;
            string Title = "MOOC学习";
            string Conten = "你的MOOC学习进度较慢,请加紧学习!";
            IStudyProgressBLL studyprogressbll = new StudyProgressBLL();
            List<OCMoocStudyStudent> OCMoocStudents_SendMsg = studyprogressbll.OCMoocStudents_SendMsg(OCID, OCClassID, -1, StudentUserIDs, Title, Conten, SendUserID, false, false);
            return OCMoocStudents_SendMsg;
        }