本文实例讲述了Python实现爬取百度贴吧帖子所有楼层图片的爬虫。分享给大家供大家参考，具体如下：
下载百度贴吧帖子图片，好好看
python2.7版本：
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#coding=utf-8
import re
import requests
import urllib
from bs4 import BeautifulSoup
import time
time1=time.time()
def getHtml(url):
page = requests.get(url)
html =page.text
return html
def getImg(html):
soup = BeautifulSoup(html, 'html.parser')
img_info = soup.find_all('img', class_='BDE_Image')
global index
for index,img in enumerate(img_info,index+1):
print ("正在下载第{}张图片".format(index))
urllib.urlretrieve(img.get("src"),'C:/pic4/%s.jpg' % index)
def getMaxPage(url):
html = getHtml(url)
reg = re.compile(r'max-page="(\d+)"')
page = re.findall(reg,html)
page = int(page[0])
return page
if __name__=='__main__':
url = "https://tieba.baidu.com/p/5113603072"
page = getMaxPage(url)
index = 0
for i in range(1,page):
url = "%s%s" % ("https://tieba.baidu.com/p/5113603072?pn=",str(i))
html = getHtml(url)
getImg(html)
print ("OK!All DownLoad!")
time2=time.time()
print u'总共耗时：' + str(time2 - time1) + 's'
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希望本文所述对大家Python程序设计有所帮助。
原文链接：https://blog.csdn.net/u013421629/article/details/77941315