安装mysql之后不知道密码，打开禅道使用时页面显示错误，进入不了禅道已解决悬赏5积分

页面显示问题：

16:44:35 ERROR: SQLSTATE[HY000] [1045] Access denied for user 'root'@'localhost' (using password: NO) in C:\xampp\xampp\zentao\framework\base\router.class.php on line 1883, last called by C:\xampp\xampp\zentao\framework\base\router.class.php on line 1841 through function connectByPDO.