访问不到怎么办

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<VirtualHost *:80>

    ServerAdmin webmaster@dummy-host2.example.com

    DocumentRoot "D:\WebPHP"

    ServerName localhost

    ServerAlias localhost

    ErrorLog "logs/dummy-host2.example.com-error.log"

    CustomLog "logs/dummy-host2.example.com-access.log" common

</VirtualHost>

<VirtualHost *:80>

 DocumentRoot "D:\www\video/public"

 ServerName web.php.demo

</VirtualHost>

<Directory "D:\www\jqlyi">

    Options Indexes FollowSymLinks Includes ExecCGI

    AllowOverride All

    Order allow,deny

    Allow from all

</Directory>