测试sql

application/jz/model/Index.php

@@ -26,7 +26,10 @@ class Index extends Model
                 and aa.jz_qy = dd.id
                 and aa.del_flag = 0 ".$where;
 
+        echo $sql;
         $data = Db::query($sql);
+        var_dump($data);
+        die;
         return $data;
     }