python圖片小爬蟲

import re

import urllib

import os

def rename(name):

    name = name + '.jpg'

    return name
def getHtml(url):

    page = urllib.urlopen(url)

    html = page.read()

    return html
def getImg(html):

    reg = r'src="(.+?.jpg)" pic_ext'

    imgre = re.compile(reg)

    imglist = re.findall(imgre,html)

os.chdir("E:\\pic")    
os.getcwd()   
x=1  
for imgurl in imglist:  
    img=urllib.urlopen(imgurl)  


    name=str(x)    
    name = rename(name)    
    print(name)   
    x=x+1  

    f=open(name,'wb')  
    f.write(img.read())   
    f.close()  





html = getHtml("http://tieba.baidu.com/p/3553148164")

getImg(html)

print 'pic save!'  </pre>