diff --git a/src/Model.php b/src/Model.php
index bee01840..714b341b 100644
--- a/src/Model.php
+++ b/src/Model.php
@@ -331,7 +331,7 @@ protected function setUpdateWhere($where): void
      * 设置当前模型的数据库连接.
      *
      * @param string $connection 数据表连接标识
-     * 
+     *
      * @return $this
      */
     public function setConnection(string $connection)