There is no link address in the HTML code. Its address is the address generated by the front-end js execution, which is commonly used in file downloads and multi-resolution images.

HTML code
 Click to download
click to download button, the download address is determined bydata-fileid="filename.zip"of filename.zip For example, the address after splicing is:http://www.demo.com/files/文件名.zipTake the above code as an example
.downloadFiledata-fileidhtp://www.demo.com/files/
This type of dynamic generation of different image sizes for img:srcset
Depending on the resolution, js dynamically loads different image sizes. srcset is an array containing the supported image sizes. 
 
 The rendered image address may be 
 
 
 
Settings similar to this: Before replacement:/image- After replacement:/image-180.jpg|/image-320.jpg|/image-640.jpg|/image-800.jpg
After replacement, multiple addresses are separated by '|
http://www.demo.com/files/20220603/image-180.jpg http://www.demo.com/files/20220603/image-320.jpg http://www.demo.com/files/20220603/image-640.jpg http://www.demo.com/files/20220603/image-800.jpg
