一：在终端输入 vim /Applications/MAMP/conf/apache/httpd.conf
搜索httpd-vhosts.conf 找到：#Include /Applications/MAMP/conf/apache/extra/httpd-vhosts.conf
将#去掉，使虚拟地址的配置文件生效。
二：vim /Applications/MAMP/conf/apache/extra/httpd-vhosts.conf，
在配置文件最后加入需要配置的虚拟主机配置
#配置test.com
ServerAdmin test.com
DocumentRoot "/Applications/MAMP/htdocs/test"
ServerName test.com
ServerAlias test.com
ErrorLog "logs/test.com-error_log"
CustomLog "logs/test.com-access_log" common
#配置active.com
ServerAdmin active.com
DocumentRoot "/Applications/MAMP/htdocs/active/"
ServerName active.com
ServerAlias active.com
ErrorLog "logs/active.com-error_log"
CustomLog "logs/active.com-access_log" common
三：进入hosts 文件 vim /etc/hosts
加入
127.0.0.1 test.com
127.0.0.1 active.com
重启appache服务器，打开浏览器输入test.com 和activie.com即可访问对应网站
