diff --git a/wx/SecCheck.php b/wx/SecCheck.php
index b955e5b..37387a5 100644
--- a/wx/SecCheck.php
+++ b/wx/SecCheck.php
@@ -6,6 +6,27 @@ namespace wchat\wx;
 
 use wchat\common\Result;
 
+enum Scene
+{
+
+    case SCENE_INFO;
+    case SCENE_REPLY;
+    case SCENE_DISCAZ;
+    case SCENE_SHEJIAO;
+
+
+    public function getValue(): int
+    {
+        return match ($this) {
+            self::SCENE_INFO    => 1,
+            self::SCENE_REPLY   => 2,
+            self::SCENE_DISCAZ  => 3,
+            self::SCENE_SHEJIAO => 4,
+        };
+    }
+}
+
+
 /**
  * Class SecCheck
  * @package wchat
@@ -63,20 +84,13 @@ class SecCheck extends SmallProgram
     }
 
 
-
-
-    const SCENE_INFO    = 1;
-    const SCENE_REPLY   = 2;
-    const SCENE_DISCAZ  = 3;
-    const SCENE_SHEJIAO = 4;
-
     /**
      * @param string $content
      * @param int $scene
      * @param string $openId
      * @return Result
      */
-    public function text(string $content, int $scene, string $openId): Result
+    public function text(string $content, Scene $scene, string $openId): Result
     {
         if (empty($content)) {
             return $this->sendError('文件不存在', 404);
@@ -86,9 +100,9 @@ class SecCheck extends SmallProgram
         return $this->post('api.weixin.qq.com', $requestUrl, json_encode([
             'content' => $content,
             'version' => 2,
-            'scene'   => $scene,
+            'scene'   => $scene->getValue(),
             'openid'  => $openId
-        ], JSON_UNESCAPED_UNICODE),'application/json');
+        ], JSON_UNESCAPED_UNICODE), 'application/json');
     }
 
 }