python采集博客中上传的QQ截图文件

import urllib2
from bs4 import BeautifulSoup
import re
import sys
reload(sys)
sys.setdefaultencoding('utf-8')
 
baseurl = "http://www.gxlcms.com/dont-worry.html"
#说明下，起始地址是第一篇文章的地址，通过该文章的页面就
#可以使用BeautifulSoup模块来获取上一篇文章的地址
 
file = open(r"E:123.txt","a")
 
def pageloop(url):
 page = urllib2.urlopen(url)
 soup = BeautifulSoup(page)
 img = soup.findAll(['img'])
 if img == []:
 print "当前页面没有图片"
 return
 else:
 for myimg in img:
 link = myimg.get('src')
 print link
 
 pattern = re.compile(r'QQS*[0-9]*png')
 badimg = pattern.findall(str(link))
 if badimg:
 print url
 file.write(link + "
")
 file.write(url+"
")
 
 
 
def getthenextpage(url):
 pageloop(url)
 page = urllib2.urlopen(url)
 soup = BeautifulSoup(page)
 for spanclass in soup.findAll(attrs={"class" : "article-nav-prev"}):
 #print spanclass
 if spanclass.find('article-nav-prev') != -1:
 pattern = re.compile(r'http://www.gxlcms.com/S*html')
 pageurl = pattern.findall(str(spanclass))
 for i in pageurl:
 #print i
 getthenextpage(i)
 
 
 
getthenextpage(baseurl)
 
 
 
print "the end!"
file.close()