修正Query类 改进Response类 改进异常输出

library/think/db/Query.php

@@ -112,6 +112,16 @@ class Query
         return $this->connection->execute($sql, $bind, $fetch, $getLastInsID);
     }
 
+    /**
+     * 获取最近插入的ID
+     * @access public
+     * @return string
+     */
+    public function getLastInsID()
+    {
+        return $this->connection->getLastInsID();
+    }
+
     /**
      * 获取当前的builder实例对象
      * @access protected