代码如下:
# -*- coding:utf-8 -*-
import httplib
import urllib
import string
import re
def getcontent():                   #从网站中获取所有内容
 conn = httplib.httpconnection(tu.duowan.com)
 conn.request(get, /m/meinv/index.html)
 r = conn.getresponse()
 print r.status, r.reason
 data1 = r.read()#.decode('utf-8') #编码根据实际情况酌情处理
 return data1
def getimageurl(data):            #将获取到img链接写到sour.txt文件中国
 sour = open(test\\sour.txt, 'w')
 pplen = len(http://s1.dwstatic.com/group1/m00/37/2a/e2c30e89184ea942a4be9c1f7ba217a5.jpg)
 for i in range(len(data) - 3):
  if data[i] == 'i' and data[i + 1] == 'm' and data[i + 2] == 'g':
   for j in xrange(i + 9, i + 9 + pplen):
    sour.write(data[j])
   sour.write('\n')
 sour.close()
def downimage():               #根据test\\sour.txt里面的url自动下载图片
 tt = 0    #name
 sour = open('test\\sour.txt')
 while 1:
  line = sour.readline()
  if line:
   len = len(line)
   #print len
   if line[len - 2] == 'g' and line[len - 3] == 'p' and line[len - 4] == 'j':
    path = line
    data = urllib.urlopen(line).read()
    f = open('test\\' + str(tt) + '.jpg', 'wb')
    f.write(data)
    f.close()
    tt = tt + 1
  else:
   break
 sour.close()
content = getcontent()
getimageurl(content)
downimage()