1、httpd.conf中 AllowOverride All（两个标签内里的）
2、在httpd.conf末端加上此代码：
<VirtualHost *:80> DocumentRoot "C:/xampp/htdocs" ServerName localhost </VirtualHost> <VirtualHost *:80> DocumentRoot "C:/xampp/htdocs/zmt" ServerName www.zmt.com </VirtualHost>
3、在C:\Windows\System32\drivers\etc中找到hosts，最下面修改以下代码:
# localhost name resolution is handled within DNS itself.
127.0.0.1 localhost
127.0.0.1 www.zmt.com
# ::1 localhost
原文：http://www.cnblogs.com/hltswd/p/5050447.html