‘‘‘Created on 2016年10月4日@author: lee:下载百度贴吧的指定帖子的所有图片‘‘‘import reimport osimport urllib.requestdef getHtml(url):    res = urllib.request.urlopen(url)    return res.read().decode(‘utf-8‘)def getMaxPage(home):    """    :获取总共的页数    """    html = getHtml(home)    #帖子的编号    id = home[home.rindex(‘/‘):]    way = r‘max-page="([0-9]+)"‘    maxpage = re.findall(way,html)    if len(maxpage) == 0:        return 0    return maxpage[0] def getImg(way,html):    res = re.findall(way, html)    for i in res:        if (i.startswith(‘http://imgsrc.baidu.com/‘)==False):            res.remove(i)    return resdef download(list,path):    """    :param list:the images‘s url     :param path:the location to save images    """    #创建文件夹    os.makedirs(path)    i = 0    print (‘下载开始    共%d项‘%len(list))    for url in list:        i+=1        urllib.request.urlretrieve(url,path+‘\\%s.jpg‘%i)        print (‘第：%s个完成‘%i)    print (‘全部完成‘)#*********************************************************##帖子的主页home = ‘http://tieba.baidu.com/p/4714184439‘#保存的路径path = ‘images‘maxpage = getMaxPage(home)maxpage = int(maxpage)urls = [home]i = 1while i<=maxpage:    #取得每一页的url    urls.append(home+‘?pn=%d‘%i)    i+=1way = r‘img.+src="http://www.mamicode.com/(.+?\.jpg)" ‘ls = []for url in urls:    #将每一页的图片链接都放到ls里面去    temp = getImg(way, getHtml(url))    ls.extend(temp)#去除ls里面的重复项ls = list(set(ls))download(ls,path)