共两步：

1，

E:\wamp\bin\apache\apache2.4.18\conf\httpd.conf 添加要监听的端口：

Listen 0.0.0.0:81

E:\wamp\bin\apache\apache2.4.18\conf\extra

2，

E:\wamp\bin\apache\apache2.4.18\conf\extra\httpd-vhosts.conf 

#VirtualHost *:81#

DocumentRoot "E:/wamp/www/zhibo3"

ServerName dummy-host.example.com

#/VirtualHost#