我正计划将域名从www.example.com更改为example2.com。为了更进一步，我还想同时更改我的固定链接。我当前的帖子固定链接有日期，我想删除它。example1.com to example2.com. To add a twist to it, I also want to change my permalinks at the same time. My current permalinks for posts have the date and I want to remove it.
我有点犹豫，以测试和失去搜索引擎优化，所以我希望有人能确认这将工作之前。
我是这么想的：在更改域后，我在htaccess中使用此代码

RewriteEngine on
RewriteCond %{HTTP_HOST} ^example1.com [NC,OR]
RewriteCond %{HTTP_HOST} ^www.example1.com [NC]
RewriteRule ^\d{4}/\d{2}/(.*) https://example2.com/$1 [R=301,L]

然后我发现了这个更改日期的规则：

RewriteRule ^[0-9]{4}/[0-9]{2}/(.*)$ https://example2.com/$1

我也看到了这个：

RewriteRule  ^/(\d*)/(\d*)/([A-Za-z0-9-]*)$ https://example2.com/$4

我不知道这些规则具体是什么意思，但我想我应该能够像这样结合起来？

RewriteEngine on
RewriteCond %{HTTP_HOST} ^example1.com [NC,OR]
RewriteCond %{HTTP_HOST} ^www.example1.com [NC]
RewriteRule ^[0-9]{4}/[0-9]{2}/(.*)$ http://example2.com/$1 [L,R=301,NC]

好像不太对劲。
或者仅仅改变WordPress中的固定链接结构会影响更改

https://www.example1.com/2019/01/how-to-write-about-cars/
redirects to
https://www.example2.com/how-to-write-about-cars/

• • 更新**

使用MrWhite的答案如下。我添加了以下代码：

RewriteEngine on
RewriteCond %{HTTP_HOST} ^example1.com [NC,OR]
RewriteCond %{HTTP_HOST} ^www.example1.com [NC]
RewriteRule  ^/(\d*)/(\d*)/([A-Za-z0-9-]*)$ https://example2.com/$4

这在以下情况下有效

https://www.example1.com/2019/01/how-to-write-about-cars/
which redirects to
https://www.example2.com/how-to-write-about-cars/

不过

https://www.example2.com/2019/01/how-to-write-about-cars/
does NOT redirect to 
https://www.example2.com/how-to-write-about-cars/

它只是返回一个404。这可能不是一个问题，因为没有什么应该被书签，但以防万一，有办法解决这个问题吗？