import re
import urllib
                                 
def getHtml(url):
        html = urllib.urlopen(url)
        scode = html.read()
        return scode
                                 
def getImage(source):
        reg = r'src="(.*?\.jpg)"'
        imgre = re.compile(reg)
        images = re.findall(imgre,source)
        x = 0
        for i in images:
                urllib.urlretrieve(i,'%s.jpg' % x)
                x+=1
                                 
source = getHtml('http://tieba.baidu.com/p/3237470549')
print getImage(source)