最后视频判断加上课程

src/components/courseTree/CourseTree.vue

@@ -1153,10 +1153,12 @@ export default {
     },
     isLastVideo() {
       try {
-        let { sectionId, chapterId } = this.sectionItem;
+        let { sectionId, chapterId, courseId } = this.sectionItem;
         let lastVideo = this.allSectionList.slice(-1)[0];
         return (
-          sectionId == lastVideo.sectionId && chapterId == lastVideo.chapterId
+          sectionId == lastVideo.sectionId &&
+          chapterId == lastVideo.chapterId &&
+          courseId == lastVideo.courseId
         );
       } catch (error) {
         return false;