fix bug

apps/exams/Lib/Action/AdminPaperAction.class.php

@@ -294,6 +294,8 @@ class AdminPaperAction extends AdministratorAction
             if (!empty(array_filter($attache_ids))) {
                 $attache_id = array_pop($attache_ids);
             }
+            echo $attache_id;
+            die;
             $data['exams_subject_id']  = end($subjectArr);
             $data['description']       = t($_POST['description']);
             $data['level']             = intval($_POST['level']);