先开启伪静态。详情查看这篇文章：http://www.cnblogs.com/CyLee/p/5544119.html
然后在项目根目录中新建一个.htaccess文件，加入以下代码
正则中()的变量 == $1,$2,$3,$4...
&%1是忽略、去掉不关注的字符串
<ifmodule mod_rewrite.c>
RewriteEngine On
RewriteRule ^css/(.*) /MVC/V/A001/css/$1
RewriteRule ^js/(.*) /MVC/V/A001/js/$1
RewriteCond %{QUERY_STRING} ^(.*)
RewriteRule ^([a-zA-Z_]{2,10})/?$ /index.php?controller=$1&%1
RewriteCond %{QUERY_STRING} ^(.*)
RewriteRule ^([a-zA-Z_]{2,10})/([a-zA-Z_]{1,20})/?$ /index.php?controller=$1&action=$2&%1
</ifmodule>
当访问shenyi.com/index/index/时，等同于访问localhost:80/index.php?controller=index&action=index