python 爬虫 豆瓣图书TOP250

import requests from bs4 import BeautifulSoup

headers={ 'User-Agent':'Mozilla/5.0 (Windows NT 6.1;WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3298.4 Safari/537.36' } def gettop250(url): html=requests.get(url,headers=headers) b=BeautifulSoup(html.text,'lxml') trs = b.select('tr.item') for tr in trs: aa=tr.select('td>a') atitle=tr.select('div.pl2>a') aritle=tr.select('p.pl') inq=tr.select('span.inq') print(aa[0].get("href")) print(aa[0].select("img")[0].get("src")) print(atitle[0].get('title')) print(aritle[0].get_text()) if len(inq)>=1:print(inq[0].get_text()) for i in range(0,250,25): gettop250("https://book.douban.com/top250?start={}".format(i))