exam-system/src/main/resources/mapper/system/ExPaperStudentMapper.xml
@@ -57,6 +57,7 @@ left join ex_student b on a.student_id=b.id left join ex_exam_paper c on c.id=a.paper_id <where> and c.del_flag=0 <if test="paperId!=null'"> and a.paper_id=#{paperId} </if>