用户限制优化

app/Http/Controllers/Admin/UserController.php

@@ -169,6 +169,10 @@ class UserController extends BaseController
             $messages['status.required'] = __('validation.admin_user.s_empty');
             $messages['status.in'] = __('validation.admin_user.s_in');
         }
+        if (!$data['email']) {
+            unset($rules['email']);
+            unset($messages['email.email']);
+        }
         $validator = Validator::make($data, $rules, $messages);
 
         if ($validator->fails()) {