update

pbl.js

@@ -1165,7 +1165,7 @@ router.route('/deleteCourse').all((req, res, next) => {
     var json = queryString(req.url);
     getmysql(req, res, "deleteCourse", json['cid']);
 });
-//删除课程
+//复制课程
 router.route('/copyCourse').all((req, res, next) => {
     postmysql(req, res, "copyCourse");
 });