#encoding:utf-8
import urllib2
import re
#获取网页内容
def getHtml(url):
    req=urllib2.Request(url)
    req.add_header('User-Agent','Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.22 Safari/537.36 SE 2.X MetaSr 1.0')
    html=urllib2.urlopen(req)
    html=html.read()
    return html
#获取图片链接
def get_photo(html):
    respon=re.compile(r'src="(.*?)"',re.S)
    photo_link=re.findall(respon,html)
    temp=0
    for link in photo_link:
        if '.png' in link:
            print link
            temp+=1
            filename='%s.png'%temp
            print filename
            download_img(link,filename)
#下载图片链接到本地
def download_img(link,filename):
    link_req=urllib2.Request(link)
    opener=urllib2.build_opener()
    img_resp=opener.open(link_req)
    try:
        fp=open(filename,'wb')
        fp.write(img_resp.read())
        fp.flush()
        fp.close()
    except:
        print 'It is error'


url='http://gl.sanguosha.com/'
html=getHtml(url)
get_photo(html)