New queations! Picture cannot be uploaded！

[longanhe]

When I use postman to upload photos, the source_path can be passed successfully, but the target_path cannot be passed successfully. The target_file passed to the server cannot be opened.

Postman:

I use AWS EC2 to deploy this code:

target_path picture can not be displayed:

but source_path picture can be displayed:

flask was right:

Thank u, my bro!!