请问这是什么问题呀，第一次尝试做系统，跪求解答！万分感谢！！！

这个问题怎么解决呀！好崩溃！被气哭！
Warning:  include(../conn.php): failed to open stream: No such file or directory in C:\phpStudy\PHPTutorial\WWW\test\Voteset.php on line 2

Warning:  include(): Failed opening '../conn.php' for inclusion (include_path='.;C:\php\pear') in C:\phpStudy\PHPTutorial\WWW\test\Voteset.php on line 2

Notice:  Use of undefined constant votename - assumed 'votename' in C:\phpStudy\PHPTutorial\WWW\test\Voteset.php on line 3

Notice:  Undefined variable: db in C:\phpStudy\PHPTutorial\WWW\test\Voteset.php on line 16

Fatal error:  Call to a member function query() on a non-object in C:\phpStudy\PHPTutorial\WWW\test\Voteset.php on line 16