python正则下载图片

import urllib.request

import re

# 打开图片路径

def open_url(url):

    #设置请求路径

    req  = urllib.request.Request(url)

    #设置请求头

    req.add_header("User-Agent",'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36')

    #发送请求

    response = urllib.request.urlopen(req)

    #获取返回内容

    page = urllib.request.urlopen(req)

    html = page.read().decode('utf-8')

    return html

# 获取图片路径

def get_img(html):

    p =  '<img class="BDE_Image" src="([^"]+\.jpg)'

    imglist = re.findall(p,html)

    '''

    for each in imglist:

        print(each)

    '''

    for each in imglist:

        filename = each.split("/")[-1]

        urllib.request.urlretrieve(each,filename,None)

#主函数

if __name__ == "__main__":

    url = "http://tieba.baidu.com/p/5838400549"

    get_img(open_url(url))
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python正则下载图片

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