HTML relative path relative to table of contents--Parent directory and subordinate directory

How to represent a parent directory

.. /indicates the directory where the source file is located, at the top level of the directory. /.. /represents the upper parent directory of the directory where the source file resides, and so on.

Suppose the info.html path is: c:/inetpub/wwwroot/sites/blabla/info.html
Suppose the index.html path is: c:/inetpub/wwwroot/sites/index.html
The code that joins the index.html hyperlink in info.html should be written like this:

<a href = ". /index.html ">index.html</a>

Suppose the info.html path is: c:/inetpub/wwwroot/sites/blabla/info.html
Suppose the index.html path is: c:/inetpub/wwwroot/index.html
The code that joins the index.html hyperlink in info.html should be written like this:

<a href = ". /.. /index.html ">index.html</a>

Suppose the info.html path is: c:/inetpub/wwwroot/sites/blabla/info.html
Suppose the index.html path is: c:/inetpub/wwwroot/sites/wowstory/index.html
The code that joins the index.html hyperlink in info.html should be written like this:

<a href = ". /wowstory/index.html ">index.html</a>

How to represent a subordinate directory

Refer to the Subordinate directory file, directly write the path of the subordinate directory file.

Suppose the info.html path is: c:/inetpub/wwwroot/sites/blabla/info.html
Suppose the index.html path is: c:/inetpub/wwwroot/sites/blabla/html/index.html
The code that joins the index.html hyperlink in info.html should be written like this:

<a href = "html/index.html" >index.html</a>

Suppose the info.html path is: c:/inetpub/wwwroot/sites/blabla/info.html
Suppose the index.html path is: c:/inetpub/wwwroot/sites/blabla/html/tutorials/index.html
The code that joins the index.html hyperlink in info.html should be written like this:

<a href = "html/tutorials/index.html" >index.html</a>

HTML relative path relative to directory--parent directory and subordinate directory