api update by backend

src/features/OfflineExam/OfflineExamList.vue

@@ -233,11 +233,7 @@ export default {
       window.location.href =
         "/api/branch_ecs_ques/paper/export/" +
         course.paperId +
-        "/PAPER/" +
-        this.user.rootOrgId +
-        "/" +
-        course.paperId +
-        "/offLine?$key=" +
+        "/PAPER/offLine?$key=" +
         this.user.key +
         "&$token=" +
         this.user.token;