Merge branch '2023-8-21_指法预览'

src/views/attend-class/index.tsx

@@ -309,6 +309,10 @@ export default defineComponent({
         activeData.model =
           ev.data.show || (ev.data.playState == 'play' ? false : true);
       }
+      if (ev.data?.api === 'api_fingerPreView') {
+        clearInterval(activeData.timer);
+        activeData.model = !ev.data.state;
+      }
     };
 
     onMounted(() => {