diff --git a/app/Listener/ValidatorFactoryResolvedListener.php b/app/Listener/ValidatorFactoryResolvedListener.php
index cca8dd3..74f4f20 100644
--- a/app/Listener/ValidatorFactoryResolvedListener.php
+++ b/app/Listener/ValidatorFactoryResolvedListener.php
@@ -37,5 +37,10 @@ class ValidatorFactoryResolvedListener implements ListenerInterface
 
         });
 
+        // 注册了 strlen 验证器规则
+        $validatorFactory->extend('strlen', function ($attribute, $value, $parameters, $validator) {
+            return strlen($value)>=$parameters[0] && strlen($value)<=$parameters[1];
+        });
+
     }
 }
\ No newline at end of file
diff --git a/app/Request/EvaluateRequest.php b/app/Request/EvaluateRequest.php
index 5d7d53c..03f6e95 100644
--- a/app/Request/EvaluateRequest.php
+++ b/app/Request/EvaluateRequest.php
@@ -25,7 +25,7 @@ class EvaluateRequest extends FormRequest
             'c_attitude' => 'required|nonempty|integer',
             'c_service' => 'required|nonempty|integer',
             'c_quality' => 'required|nonempty|integer',
-            'content' => 'required|nonempty|between:15,150',
+            'content' => 'required|nonempty|strlen:15,150',
             'user_id' => 'required|nonempty|integer|exists:ims_cjdc_user,id',
             'service_personnel_id' => 'required|nonempty|integer|exists:lanzu_service_personnel,id',
             'market_id' => 'required|nonempty|integer|exists:ims_cjdc_market,id',