如何通过.htaccess将所有请求重定向到www目录?

RewriteEngine On

# Only redirect if we're on the subdomain and haven't redirected
# (internally) to /www/ yet
RewriteCond %{HTTP_HOST}    ^test
RewriteCond %{REQUEST_URI} !^/www/
RewriteRule ^.*$ /www/$0 [L]

# Let's also prevent them from being able to go to our /www path manually
RewriteCond %{THE_REQUEST}  ^(POST|GET)\s/www
RewriteRule ^www/?(.*)$ http://test.mydomain.com/$1 [R,L]