你可以试试下面的mod_rewrite，它真的可以工作，我在我看的here教程中看到了这个，这里是. htaccess。

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /foldername/foldernameifapplicable/foldernameifapplicable

#Removes access to the system folder by users.
#Additionally this will allow you to create a System.php controller,
#previously this would not have been possible.
#'system' can be replaced if you have renamed your system folder.
RewriteCond %{REQUEST_URI} ^system.*
RewriteRule ^(.*)$ /index.php?/$1 [L]

#When your application folder isn't in the system folder
#This snippet prevents user access to the application folder
#Submitted by: Fabdrol
#Rename 'application' to your applications folder name.
RewriteCond %{REQUEST_URI} ^application.*
RewriteRule ^(.*)$ /index.php?/$1 [L]

</IfModule>

<IfModule !mod_rewrite.c>
    # If we don't have mod_rewrite installed, all 404's
    # can be sent to index.php, and everything works as normal.
    # Submitted by: ElliotHaughin

ErrorDocument 404 /index.php
</IfModule>

我不记得所做的所有更改，但我遵循了以下教程，它做了你问。

https://www.youtube.com/watch?v=I752ofYu7ag

htaccess看起来像这样

<IfModule authz_core_module>
    Require all denied
</IfModule>
<IfModule !authz_core_module>
    Deny from all
</IfModule>

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