diff --git a/src/main/java/com/sztzjy/resource_center/controller/CaseStepController.java b/src/main/java/com/sztzjy/resource_center/controller/CaseStepController.java
index ae31e3f..e80ad23 100644
--- a/src/main/java/com/sztzjy/resource_center/controller/CaseStepController.java
+++ b/src/main/java/com/sztzjy/resource_center/controller/CaseStepController.java
@@ -94,8 +94,7 @@ public class CaseStepController {
     private List<SysTopicAndCourse> getSysTopicAndCourses(String caseId) {
         SysTopicAndCourseExample example = new SysTopicAndCourseExample();
         example.createCriteria().andTopicIdEqualTo(caseId).andTopicTypeEqualTo("1");
-        List<SysTopicAndCourse> sysTopicAndCourses = topicAndCourseMapper.selectByExample(example);
-        return sysTopicAndCourses;
+        return topicAndCourseMapper.selectByExample(example);
     }