Fatal error: Uncaught Error: Call to undefined function mysql_connect() in E:\phpstudy\PHPTutorial\WWW\zp\include\mysql.class.php:24 Stack trace: #0 E:\phpstudy\PHPTutorial\WWW\zp\include\mysql.class.php(17): mysql->connect('localhost', 'root', 'bowang2019!@#12...', 'zhaopin', 'gbk', 1) #1 E:\phpstudy\PHPTutorial\WWW\zp\index.php(37): mysql->__construct('localhost', 'root', 'bowang2019!@#12...', 'zhaopin') #2 {main} thrown in E:\phpstudy\PHPTutorial\WWW\zp\include\mysql.class.php on line 24