import requests,urllib,os
from bs4 import BeautifulSoup
ans = 1
for page in range(58,69):
url = 'http://bbs.fengniao.com/forum/pic/slide_101_6478020_768937' + str(page) + '.html'
header = {'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.109 Safari/537.36'}
source_code = requests.get(url,headers = header)
plain_text = source_code.text
soup = BeautifulSoup(plain_text,'lxml')
download_link = []
file_name = ''
for pic_tag in soup.find_all('a'):
#get the name
if pic_tag.get('href')=='/forum/6478020.html':
file_name = pic_tag.get('title')
if pic_tag.get('class')==['pictureDownload']:
download_link.append(pic_tag.get('href'))
#file setting
folder_path = "D:/spider_things/2016.4.6/" + file_name +"/"
if not os.path.exists(folder_path):
os.makedirs(folder_path)
for item in download_link:
urllib.urlretrieve(item,folder_path + str(ans) + '.jpg')
print 'download_',ans,'_pics'
ans=ans+1
这次爬虫应用了创建文件夹的功能:
#file setting
folder_path = "D:/spider_things/2016.4.6/" + file_name +"/"
if not os.path.exists(folder_path):
os.makedirs(folder_path)
上面代码块的意思是:
"os.path.exists(folder_path)"用来判断folder_path这个路径是否存在,如果不存在,就执行“os.makedirs(folder_path)”来创建这个路径