Python爬取豆瓣电影top250排行榜示例代码，用的parsel和re两个模块，代码如下：
import requests
import csv
import re
import parsel
with open("豆瓣top250.csv",mode="w",encoding="utf_8_sig",newline='') as f:
csv_writer = csv.writer(f)
csv_writer.writerow(['片名','类型','评价人数',"上映时间",'导演_演员','国家','英文名','简介'])
#注意headers里面的大小写
headers={
'Cookie':'ll="118192"; bid=SxMSLUjm454; __utma=30149280.231185692.1663748575.1663748575.1663748575.1; __utmc=30149280; __utmz=30149280.1663748575.1.1.utmcsr=baidu|utmccn=(organic)|utmcmd=organic; __utmt=1; _pk_ref.100001.4cf6=["","",1663748581,"https://www.douban.com/"]; _pk_ses.100001.4cf6=*; __utmc=223695111; ap_v=0,6.0; __gads=ID=614eff214af342d2-221efc6e45d700a2:T=1663748581:RT=1663748581:S=ALNI_MY0JTwsKMOM9E6Uz_e8b88JW-wE9g; __gpi=UID=000009d31ea23134:T=1663748581:RT=1663748581:S=ALNI_MZ4KfeKbaWWs0Aeu0t5jqh2RD0IsA; Hm_lvt_16a14f3002af32bf3a75dfe352478639=1663748600; Hm_lpvt_16a14f3002af32bf3a75dfe352478639=1663748600; _vwo_uuid_v2=D913112FAEA958ABF7FCF7279209CA382|d77575243d8ec24302f391aa8e5672ff; __utma=223695111.399175606.1663748581.1663748581.1663748653.2; __utmb=223695111.0.10.1663748653; __utmz=223695111.1663748653.2.2.utmcsr=baidu|utmccn=(organic)|utmcmd=organic; __utmb=30149280.2.10.1663748575; dbcl2="262975336:xPwIu1zP+eU"; ck=AvuC; push_noty_num=0; push_doumail_num=0; _pk_id.100001.4cf6=28fbd6e9a044e121.1663748581.1.1663748823.1663748581.',
'Referer':'https://www.baidu.com/link?url=P6mLfMtLSzXHxZYitwSc9UDnuTlARc-CJk-15rb3SfSKZlZQcjj-36ER1uqKcs1bl0s-eI6n1Onsaydsdu9zc_&wd=&eqid=b5b5e8680002085b00000005632acac7',
'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36'
}
for i in range(10):
url=f'https://movie.douban.com/top250?start={25*i}&filter='
response=requests.get(url=url,headers=headers)
# print(response.text)
selector=parsel.Selector(response.text)
title=selector.xpath(('//*[@id="content"]/div/div[1]/ol/li/div/div[2]/div[1]/a/span[1]/text()')).getall()
introduction=selector.xpath(('//*[@id="content"]/div/div[1]/ol/li/div/div[2]/div[2]/p[2]/span/text()')).getall()
judge_num=selector.xpath(('//*[@id="content"]/div/div[1]/ol/li/div/div[2]/div[2]/div/span[4]/text()')).getall()
director_actor=re.findall(' <p class="">s(.*?)<br>',response.text)
sum=selector.xpath('//*[@id="content"]/div/div[1]/ol/li/div/div[2]/div[2]/p[1]/text()[2]').getall()
englishname=selector.xpath('//*[@id="content"]/div/div[1]/ol/li/div/div[2]/div[1]/a/span[2]/text()').getall()
for i in range(25):
Title=title[i]
mm=sum[i].strip()
year = mm.split('/')[0]
country = mm.split('/')[1]
type = mm.split('/')[2]
Director=director_actor[i].strip()
Introduction=introduction[i].strip()
Englishname=englishname[i].strip()
Judge_num=judge_num[i].strip()
with open("豆瓣top250.csv",mode="a",encoding="utf-8_sig",newline='') as f:
csv_writer = csv.writer(f)
csv_writer.writerow([Title,type,Judge_num,year,Director,country,Englishname,Introduction])
