以添加demo.com作虚拟主机，目录以W:/demo.com 为例

1.在 C:\Windows\System32\drivers\etc\hosts，添加：

127.0.0.1 demo.com

2.在 C:\wamp\bin\apache\apache2.4.23\conf\httpd.conf,查找：

# Virtual hosts
# Include conf/extra/httpd-vhosts.conf
修改为：
# Virtual hosts
 Include conf/extra/httpd-vhosts.conf

3.在 C:\wamp\bin\apache\apache2.4.23\conf\extra\httpd-vhosts.conf,添加几行代码：

<VirtualHost *:80>
    ServerName demo.com
    ServerAlias demo.com
    DocumentRoot "W:/demo.com
    <Directory  "W:/demo.com/">
        Options +Indexes +Includes +FollowSymLinks +MultiViews
        AllowOverride All
        Require local
    </Directory>
</VirtualHost>

添加后需要重启服务器，三步完成。