请问各位老师，这个怎么解决Deprecated: mysql_pconnect(): The mys

请问老师，这个要怎么解决，百度了好多都没有搞清楚，谢谢！

Deprecated:  mysql_pconnect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in D:\phpstudy_pro\WWW\company\Connections\company.php on line 9