The crawler crawls the pictorial 403 (when the URL gets the input stream 403), because the request header is missing

Error message: server returned HTTP response code: 403 for URL:

The http403 command is to prohibit malicious access to this website, and the content cannot be crawled from this website

If crawling is forbidden on the server side, you can cheat the server by setting the user agent

It’s not just about adding

When downloading a picture, the request should be added