您可以尝试以下方式：

  + FollowSymlinks 
 RewriteEngine On 
 RewriteBase / 
 RewriteCond％{REQUEST_URI} ^ / computers /（[^  - ] +） - 电脑/？ [NC] 
 RewriteRule。*％1-computer？ [R = 301，L] 
 

永久重定向

http://www.mydomain.com/computers/anyname-computer 带或不带尾部斜杠。

To：

http://www.mydomain.com/anyname-电脑

字符串电脑和电脑假定是固定的，而任何被假定为可变的。

传入的URL结构要保留规则集工作：第一个文件夹 / computers ，后跟 / anyname-computer 。 p>

对于静默映射，从中删除​​ R = 301 [R = 301，L] code>

My directories are like:

http://www.mydomain.com/macbook-computer 
http://www.mydomain.com/sony-computer
http://www.mydomain.com/lenovo-computer

I want to make that, if a user type computers/macbook-computer like:

http://www.mydomain.com/computers/macbook-computer  

I want to display page which is : http://www.mydomain.com/macbook-computer.

My restrictions are:

1. User must type /computers                                (segment 1)
2. String coming from computers/ must end with "computer".  (segment 2)   

How can I make this achieve in my .htaccess file?

You may try this:

Options +FollowSymlinks
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_URI} ^/computers/([^-]+)-computer/? [NC]
RewriteRule .*  %1-computer?  [R=301,L]

Redirects permanently

http://www.mydomain.com/computers/anyname-computer with or without trailing slash.

To:

http://www.mydomain.com/anyname-computer

Strings computers and computer are assumed to be fixed, while anything is assumed to be variable.

The incoming URL structure has to be kept for the rule-set to work: First folder /computers followed by /anyname-computer.

For silent mapping, remove R=301 from [R=301,L]