update

src/modules/course/views/Player.vue

@@ -53,7 +53,7 @@ onMounted(() => {
     params._p = res.data?.cache?.pt
     player = new Player({
       id: 'mse',
-      url: res.data.info?.FD,
+      url: res.data.info?.SD,
       height: '200px',
       width: '100%',
       startTime: res.data.cache?.cpt || 0