title: How to automatically download the files that have a download button on a webpage?
body: <p>I need to download all the files that have a download button on a webpage, such as this page:<a href="http://a.vmall.com/topic/list/d6aac030f17e49d990b8a1996e872d53" rel="nofollow">http://a.vmall.com/topic/list/d6aac030f17e49d990b8a1996e872d53</a>, every app has a download button, that requires you to click "download" on the website, then it begin to download</p>
  
  <p>How do I write a python or selenium script to automatically download the all files that has a "download" button? thanks</p>