使用Python下载Bing图片（代码）

<span style="font-family: arial,helvetica,sans-serif; font-size: 16px;"># -*- coding: cp936 -*-
import urllib
import os

print 'download data......'
url = 'http://cn.bing.com'
urlfile = urllib.urlopen(url)
data = urlfile.read()
urlfile.close()
data = data.decode('utf-8')

pre = 'g_img={url:\''
index1 = data.find(pre) + len(pre)
index2 = data.find('\'', index1)
imgurl = data[index1 : index2]

preimg = u'h3>今日图片故事</h3><a href='
index3 = data.find(preimg) + len(preimg)
index4 = data.find('>', index3) + 1
index5 = data.find('<', index4)

imgname = data[index4 : index5] +u'.jpg'

if os.path.exists(imgname) == false:
    print 'download image......'
    urllib.urlretrieve(imgurl, imgname)
print 'download complete'
os.startfile(imgname)
</span>