If use chrome check the source code is: & lt; A target="_blank" href="https://bbs.csdn.net/finalpage/2021-04-03/1209638861.PDF" & gt;
If use request request page source code is typed response: & lt; A target="_blank" : href="https://bbs.csdn.net/topics/pdfUrl" & gt;
For Daniel how can grab href data?