在wampserver 3.1.0中创建虚拟主机时出现问题

Question

以下是我在 httpd-vhosts.conf 目录中的代码＆＃34; C：\ wamp64 \ bin \ apache \ apache2.4.27 \ conf \ extra＆＃34;

<VirtualHost *:80>
    ServerName customhost.dev
    DocumentRoot "${INSTALL_DIR}/www/customhost/"
    <Directory "${INSTALL_DIR}/www/customhost/">
        AllowOverride All
        Order allow,deny
        Allow from all
    </Directory>
</VirtualHost>

=============================================== ================= 下面是我在目录中的主机文件中放置的代码 ＆＃34; C：\窗口\ system32 \驱动程序\等\主机＆＃34;

:: 1 localhost

:: 1 customhost.dev

=============================================== ================= 以下问题多次尝试!!!

即使在WAMPSERVER的闪存屏幕中显示