diff --git a/Connection.php b/Connection.php
index f62b03b..9bc2f24 100644
--- a/Connection.php
+++ b/Connection.php
@@ -226,6 +226,7 @@ class Connection extends Component
         return $pdo;
     }
 
+
     /**
      * @return bool
      * @throws Exception
@@ -235,6 +236,7 @@ class Connection extends Component
         return $this->storey > 0;
     }
 
+
     /**
      * @throws Exception
      * 事务回滚