edit

learn/active/lib/Manage.php

@@ -26,6 +26,9 @@ Class Manage
         $num = Dever::param('num',$data);
         $order_id = Dever::param('order_id',$data);
         $data = Dever::db('active/order')->find($order_id);
+        if ($num < 1) {
+            Dever::alert('退款数量不正确');
+        }
         if($num > $data['num']) {
             Dever::alert('退款数量大于购买数量');
         }