update

src/views/task_details/student/index.vue

@@ -27,7 +27,7 @@
           color="#fff"
           :title="item.file_name"
         >
-          <span>{{ item.file_name }}</span>
+          <a :href="item.file_url" target="_blank">{{ item.file_name }}</a>
         </el-tag>
       </div>
       <!-- 完成评价 -->

src/views/teacher/create_course/step_table/NewTask.vue

@@ -402,6 +402,10 @@ export default {
     },
 
     selectCourse(course_id) {
+      if (course_id.length === 0) {
+        this.$message.warning('请选择课件');
+        return;
+      }
       let type = this.form.teaching_type;
       if (type === 10) {
         this.getTreeNodeInfo_BookChapterStruct(course_id, 'live');