Absolute positioning:
Use the address of the file on the local computer directly. For example, the location of my picture is:
C:\Users\Pictures\11.jpg
Then finally you can write:
<img src="C:\Users\Pictures\11.jpg">
Relative positioning:
(All the following are hyperlinks)
1. The picture and the html file are in the same directory,
then the file name of the picture can be written directly
<a href="11.jpg">11.jpg</a>
2. The picture is at the next level of the directory where the html file is located
<a href="pictures\11.jpg">11.jpg</a>
The same goes for the lower level, and so on
<a href="pictures\css\11.jpg">11.jpg</a>
3. If the picture is at the upper level of the html file,
then use.. \ To indicate the upper level, then the upper level is.. \. .\
<a href="..\css\11.jpg">11.jpg</a>
<a href="..\..\css\11.jpg">11.jpg</a>