update

src/components/pages/student/addCourse.vue

@@ -6852,8 +6852,10 @@ export default {
             const x = new XMLHttpRequest();
             x.open("GET", _url, true);
             x.responseType = "blob";
+            const loading = this.openLoading();
             _this.$message.success("文件下载中...")
             x.onload = function (e) {
+                loading.close();
                 // const url = window.URL.createObjectURL(x.response);
                 // const a = document.createElement("a");
                 // a.href = url;