运行后，文件：/caches/error_log.php
里面一直会出现这个提示：
The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead | phpcms\libs\classes\mysql.class.php | 56

修改
caches\configs\database.php
phpsso_server\caches\configs\database.php
两个文件type的值改成mysqli