Merge branch 'master' of https://git.cocorobo.cn/CocoRoboLabs/pbl-api

pbl.js

@@ -539,7 +539,7 @@ router.route('/addRace').all((req, res, next) => {
             let courseId = ret[0][0].id;
             let userid = req.body[0].uid;
             delCourseType1(course, courseId, userid);
-            res.end(JSON.stringify({ success: 1 }));
+            res.end(JSON.stringify({ courseId: courseId, success: 1 }));
         });
     }
 });