How to download Douban girl pictures by python crawler

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The code is as follows:

Import requestsimport reimport timefrom bs4 import BeautifulSoup

Cat = '2'img =' http://www.dbmeinv.com/dbgroup/show.htm?cid='+ catend ='/ dbgroup/show.htm?cid='+ cat +'& pager_offset=100'urls = [] def getURLs (mainURL): time.sleep (1) headers = {'User-Agent':' Mozilla/5.0 (Macintosh) Intel Mac OS X 10 / 11 / 2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.80 Safari/537.36'} html = requests.get (mainURL). Text soup = BeautifulSoup (html, 'html.parser') picURL = re.findall ('