Py之Crawler：利用python的爬虫功能实现从各种网站上（以百度贴吧为例）获得你喜欢的照片下载到本地电脑上——Jason niu

import urllib.request
import re 
import os

def open_url(url):
    req=urllib.request.Request(url) 
    req.add_header("User-Agent", "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.90 Safari/537.36 2345Explorer/9.2.1.17116")
    page=urllib.request.urlopen(req)
    html=page.read().decode("utf-8")
    
    return html

def get_img(html):
    p=r'<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)
    
if __name__=="__mian__":
    url="http://tieba.baidu.com/p/3563409202"  
    get_img(open_url(url))                     

url="http://tieba.baidu.com/p/3563409202"
get_img(open_url(url))