update

src/components/pages/course.vue

@@ -1653,7 +1653,7 @@ export default {
         };
         try {
           const res = await this.ajax.get(this.$store.state.api + "checkClass", params)
-          let data = res.data[0][0]
+          let data = res.data[0][0].result
           return data
         } catch (err) {
           console.error(err);