# -*- codeing = utf-8 -*-
from bs4 import BeautifulSoup
import re
import urllib.request,urllib.error
import xlwt
def main():
baseurl = "https://movie.douban.com/top250?start=0"
#爬取网页
datalist = getData(baseurl)
savepath = ".\\豆瓣电影Top250.xls"
# 保存数据
saveData(datalist,savepath)
#askURL("https://movie.douban.com/top250?start=0")
findLink = re.compile(r'') #生成正则表达式对象
findImgSrc = re.compile(r'(.*)') #片名
findRating = re.compile(r'(\d*)人评价') #评价人数
findInq = re.compile(r'(.*)') #概况
findBd = re.compile(r'(.*?)
',re.S)
#爬取网页
def getData(baseurl):
datalist = []
for i in range(0,10): #调用获取页面信息函数
url = baseurl + str(i*25)
html = askURL(url) #保存获取网页源码
# 解析数据
soup = BeautifulSoup(html,"html.parser")
for item in soup.find_all('div',class_="item"): #查找符合要求的字符串 形成列表
data = [] #保存一部电影信息
item = str(item)
link=re.findall(findLink,item)[0] #re库通过正则表达式查找指定信息
data.append(link) #添加链接
imgSrc=re.findall(findImgSrc,item)[0]
data.append(imgSrc) #添加图片
titles = re.findall(findTitle,item)
if(len(titles)==2):
ctitle = titles[0]
data.append(ctitle)
otitle = titles[1].replace("/","") #替换/
data.append(otitle)
else:
data.append(titles[0])
data.append('') #外国名留空
rating = re.findall(findRating,item)[0]
data.append(rating) #评分
judgeNum = re.findall(findJudge,item)[0]
data.append(judgeNum) #评价人数
inq = re.findall(findInq,item)
if len(inq) != 0:
inq = inq[0].replace("。","")
data.append(inq) #概述
else:
data.append(" ")
bd = re.findall(findBd,item)[0]
bd = re.sub('
(\s+)?'," ",bd) #去掉
bd = re.sub('/'," ",bd) #替换/
data.append(bd.strip()) #去掉空格
datalist.append(data)
return datalist
#得到一个指定URL网页
def askURL(url):
# 模拟浏览器头部信息
head = {
"User-Agent": "Mozilla / 5.0(Windows NT 10.0;Win64;x64) AppleWebKit / 537.36(KHTML, likeGecko) Chrome / 94.0.4606.81Safari / 537.36Edg / 94.0.992.50"
} #伪装浏览器
request = urllib.request.Request(url,headers=head)
html=""
try:
response = urllib.request.urlopen(request)
html = response.read().decode("utf-8")
#print(html)
except urllib.error.URLError as e:
if hasattr(e,"code"):
print(e.code)
if hasattr(e,"reason"):
print(e.reason)
return html
#保存数据
def saveData(datalist,savepath):
print("save...")
book = xlwt.Workbook(encoding="utf-8",style_compression=0)
sheet = book.add_sheet('豆瓣电影Top250',cell_overwrite_ok=True)
col = ("电影链接","图片链接","影片中文名","影片外国名","评分","评价数","概况","相关信息")
for i in range(0,8):
sheet.write(0,i,col[i])
for i in range(0,250):
print("第%d条"%(i+1))
data = datalist[i]
for j in range(0,8):
sheet.write(i+1,j,data[j])
book.save(savepath)
if __name__=="__main__": #当程序执行时
#调用函数
main()
print("爬取完毕!")
') #评分
findJudge = re.compile(r'