Python简单爬取蚂蚁窝首页的图片

import urllib
import urllib2
import re

def getHtml(url):
page = urllib.urlopen(url)
html = page.read()
return html
def getImag(html):
reg = r'src="(.+?)"'
imgre = re.compile(reg)
imglist = re.findall(imgre, html)
x = 0
url = "/Users/userName/Desktop/python/"
for imagurl in imglist:
urllib.urlretrieve(imagurl,url+'%s' % x)
x+=1
return imglist
html = getHtml("http://www.mafengwo.cn/")
print getImag(html)

def getHtml(url):
request = urllib2.Request(url)
response = urllib2.urlopen(request)
html = response.read()
return html