fix

src/views/exercise-after-class/index.tsx

@@ -279,6 +279,7 @@ export default defineComponent({
             }
             if (nextItem?.type === materialType.曲目) {
               handleInit(1)
+              goback()
               const parmas = qs.stringify({
                 id: nextItem.content,
                 courseScheduleId: query.courseScheduleId,