update

mec-biz/src/main/resources/config/mybatis/CourseScheduleMapper.xml

@@ -2335,7 +2335,7 @@
         COUNT(DISTINCT cs.id_)
         FROM
         course_schedule cs
-        LEFT JOIN student_attendance sa ON sa.course_schedule_id_ = cs.id_
+        LEFT JOIN student_attendance sa ON sa.course_schedule_id_ = cs.id_ AND sa.remark_ IS NULL
         <include refid="endFindCourseSchedulesCondition"/>
     </select>
     <select id="findCourseIdsByStudent" resultType="int">