在根目录中的代码已经工作（例如）：

RewriteEngine on
RewriteCond %{HTTP_HOST} ^oldsite.co.uk [NC,OR]
RewriteCond %{HTTP_HOST} ^www.oldsite.co.uk [NC]
RewriteRule ^(.*)$ https://www.NEW111NEW.com/$1 [L,R=301,NC]

现在我需要重新导向子网域（例如）：

从：https://info.oldsite.co.uk/blog/some-blog-post-a
至：https://info.NEW111NEW.com/blog/some-blog-post-a
我试了- 1（不工作）：

RewriteEngine On
RewriteBase /
RewriteCond %{HTTP_HOST} ^info.oldsite.co.uk [NC]
RewriteRule ^blog/(.*) http://info.NEW111NEW.com/blog/$1 [L,R=301,NC]

还尝试了-2（不工作）：

RewriteEngine on
RewriteBase /
RewriteCond %{HTTP_HOST} ^(info\.)?oldsite\.co\.uk$ [NC]
RewriteRule ^(.*)$ http://info.NEW111NEW.com/blog/$1 [R=302,L]

---更新---
当尝试-3时（部分工作）：

RewriteEngine on
RewriteBase /
RewriteCond %{HTTP_HOST} ^info\.oldsite\.co\.uk [NC]
RewriteRule ^(.*)$ https://info.new.com/blog/$1 [L,R=301,NC]

这里https://info.oldsite.co.uk/dsadasdsad会变成https://info.new.com.co.uk/%60https://info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/%60https:/info.new.com.com/blog/blog/fsdfdsfsd%60%60%60%60%60%60%60%60%60%60%60%60%60%60%60%60%60%60%60
AND https://info.oldsite.co.uk/blog/dsadasdsad将转到https://info.new.com.com//blog/dsadasdsad（几乎可以正常工作，但此处有双斜杠“//”）