一些功能

app/models/store/StoreExchangeOrder.php

@@ -85,6 +85,7 @@ class StoreExchangeOrder extends BaseModel
             $v['add_time'] = $v['add_time'] ? date('Y-m-d H:i:s', $v['add_time']) : '';
         }
         $count = $model->count();
+        var_dump(StoreExchangeOrder::getLastSql());
         return compact('data', 'count');
     }