fix bug

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

@@ -289,10 +289,11 @@ class AdminPaperAction extends AdministratorAction
             if (end($subjectArr) == 0) {
                 array_pop($subjectArr);
             }
+            $attache_id = '';
             $attache_ids = explode('|', $_POST['attache_ids']);
-
-            var_dump(array_filter($attache_ids));
-            die;
+            if (!empty(array_filter($attache_ids))) {
+                $attache_id = array_pop($attache_ids);
+            }
             $data['exams_subject_id']  = end($subjectArr);
             $data['description']       = t($_POST['description']);
             $data['level']             = intval($_POST['level']);
@@ -311,7 +312,7 @@ class AdminPaperAction extends AdministratorAction
             $data['is_rand']           = isset($_POST['is_rand']) ? intval($_POST['is_rand']) : 0;
             $data['assembly_type']     = isset($_POST['assembly_type']) ? intval($_POST['assembly_type']) : 0;
             $data['best']              = isset($_POST['best']) ? intval($_POST['best']) : 0;
-            $data['attache']           = isset($_POST['attache_ids']) ? intval($_POST['attache']) : '';
+            $data['attache']           = $attache_id;
             $data['price']             = t($_POST['price']);
             if (M('exams_paper')->where(['exams_paper_id' => $paper_id])->save($data)) {
                 $this->success('编辑成功');