add

application/Admin/Controller/WelfareController.class.php

@@ -42,7 +42,7 @@ class WelfareController extends AdminbaseController
                     ];
                     M("welfare_rate")->add($p);
                 } else {
-                    $a = M("welfare_rate")->where(array('id' => 1))->save(['rate' => $price]);
+                    $a = M("welfare_rate")->where('id=1')->save(['rate' => $price]);
                     var_dump($a);
                     die;
                 }