转过之后就都转过去了

你太有才了，谢谢啊

最基本的301 也算是天才？

RewriteCond %{HTTP_HOST} ^xxx.com [NC,OR]
RewriteCond %{HTTP_HOST} ^www.xxx.net [NC,OR]
RewriteCond %{HTTP_HOST} ^xxx.net [NC]
RewriteRule ^(.*)$ https://www.xxx.com/$1 [L,R=301]