so, I"m going to implement a function now.

• first select a local file
• then click on the file (the effect is similar to uploading a file, but it will not be opened after clicking)
• generate a link on the page after clicking
• Click the link to open the file (assuming the file is in a format that can be parsed by the browser)

if I can"t get the path of uploading files because of browser security, what method do I need to achieve the above functions?