diff --git a/src/main/java/com/yipin/liuwanr/mapper/ExperimentalClassMapper.java b/src/main/java/com/yipin/liuwanr/mapper/ExperimentalClassMapper.java
index 27941e4..d265583 100644
--- a/src/main/java/com/yipin/liuwanr/mapper/ExperimentalClassMapper.java
+++ b/src/main/java/com/yipin/liuwanr/mapper/ExperimentalClassMapper.java
@@ -123,7 +123,7 @@ public interface ExperimentalClassMapper {
 	 * @param experimentalClassId
 	 * @return
 	 */
-	@Select("select c.classId,c.className from experimental_class_student stu,student s,class " + 
+	@Select("select c.classId,c.className from experimental_class_student stu,student s,class c " +
 			"where stu.studentId=s.studentId and s.classId=c.classId and stu.experimentalClassId=#{experimentalClassId} GROUP BY c.classId")
 	List<StuProfessionalArchitecture> getStudentClass(Integer experimentalClassId);
 	
diff --git a/src/main/java/com/yipin/liuwanr/mapper/ExperimentallearningMapper.java b/src/main/java/com/yipin/liuwanr/mapper/ExperimentallearningMapper.java
index c8bd2a8..1df991f 100644
--- a/src/main/java/com/yipin/liuwanr/mapper/ExperimentallearningMapper.java
+++ b/src/main/java/com/yipin/liuwanr/mapper/ExperimentallearningMapper.java
@@ -86,8 +86,8 @@ public interface ExperimentallearningMapper {
 	 * @param courseId
 	 * @return
 	 */
-	@Select("SELECT id,experimentId,experimentalClassId,classId FROM assessment WHERE id in (SELECT id FROM assessment  ass,hr_project_management pm WHERE assesmentState=1 AND ass.experimentId=pm.projectId AND ass.experimentId in "
-			+ "(SELECT projectId FROM hr_project_management WHERE isdel=0 AND projectPermissions=1 AND systemId in (SELECT systemId FROM course WHERE courseId=#{courseId})))")
+	@Select("select id,experimentId,experimentalClassId,classId from assessment a left join hr_project_management pm on a.experimentId=pm.projectId left join hr_course_tc tc on pm.systemId=tc.systemId\n" +
+			"where a.assesmentState=1 AND pm.state=1  and pm.isdel=0 AND pm.projectPermissions=1 and a.courseId=tc.courseId  and tc.courseId=#{courseId}   GROUP BY tc.systemId")
 	List<Assesment> queryAssesment(Integer courseId);