#!/usr/bin/env python#-*- coding:utf8 -*-
import sysreload(sys)sys.setdefaultencoding(‘gbk‘)import urllib,urllib2import refrom bs4 import BeautifulSoupclass GetHtml():    def __init__(self):          headers = { #伪装为浏览器抓取                       ‘User-Agent‘:‘Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6‘            }        html = "http://tieba.baidu.com/f?kw=摄影&ie=utf-8&ie=utf-8&fr=wwwt"   #摄影贴吧的首页链接        self.req = urllib2.Request(html)        self.req.add_header(‘User-Agent‘,headers)                  content = urllib2.urlopen(self.req).read()        soup = BeautifulSoup(content)        aLinks = soup.find_all(‘a‘)     #定位a标签        self.urls = []        for aLink in aLinks :            href = http://www.mamicode.com/str(aLink.get(‘href‘))       #a标签内href的属性"/p/\d{10}")      #正则筛选出符合条件的数据,比如 /p/1234567890            if link.findall(href):                url = link.findall(href)                        self.urls += url                #结果合并成一个list      def getImg(self):        for u in self.urls:         #循环进入每个帖子内，查找jpg后缀的文件，并download            page = urllib2.urlopen(‘http://tieba.baidu.com‘+u)            html = page.read()            reg = r‘src="http://www.mamicode.com/(.+?\.jpg)" pic_ext‘                   imgre = re.compile(reg)            imglist = re.findall(imgre,html)            x = 0            for img in imglist:                urllib.urlretrieve(img,‘%s.jpg‘ % x)                x+=1                        if __name__ == "__main__":    gh = GetHtml()    gh.getImg()