fix

cooleshow-user/user-biz/src/main/java/com/yonge/cooleshow/biz/dal/service/impl/VideoLessonGroupServiceImpl.java

@@ -259,7 +259,7 @@ public class VideoLessonGroupServiceImpl extends ServiceImpl<VideoLessonGroupDao
         VideoLessonStudentVo lessonStudentVo = new VideoLessonStudentVo();
 
         VideoLessonGroupVo videoLessonGroupVo = detail(groupId);
-        if (videoLessonGroupVo != null) return lessonStudentVo;
+        if (videoLessonGroupVo == null) return lessonStudentVo;
 
         lessonStudentVo.setLessonGroup(videoLessonGroupVo);
         VideoLessonSearch search = new VideoLessonSearch();