python crawling Baidu Image - flip-style website crawling

Small series about the beginning of this month to write this piece of code, but unfortunately, probably No. 20, looking again Baidu picture page stream and found a waterfall and go back, but fortunately the code inside left page URL stream

So now come for everyone to share.

Language: python3.6

库:requests, re, urllib

In addition to the requests need to pip install, comes with python are two other modules, can be called directly.

The original URL code: https: //image.baidu.com/search/flip tn = baiduimage & ie = utf-8 & word = little sister & pn = 0?

Direct Copy the URL can view the first page of photos of Baidu picture page flow of small sister. Well, in the following code, as detailed comments.

#!/usr/bin/python3
# -*- coding:utf-8 -*-
# Author:water_chen


import requests
import re
from urllib import request

def get_picture_list(keyword,biggest_pages):
    all_picture_list = []
    for page in range(biggest_pages):
     # 每一页20张图片, 所以翻页的是0 20 40 80 这样变化的
        page = page * 20
        url = 'https://image.baidu.com/search/flip?tn=baiduimage&ie=utf-8&word={}&pn={}'.format(keyword, page)
     # 
        html = requests.get(url).content.decode('utf-8')

        picture_list = re.findall('{"thumbURL":"(.*?)",', html)# 用正则匹配,获得图片的url

        all_picture_list.extend(picture_list)
  all_picture_list = set(all_picture_list)# 因为第二页也有后面两页的图片,所以要去重
  download_picture(all_picture_list)
# 下载图片
def download_picture(all_picture_list):
    for i, pic_url in enumerate(all_picture_list):
        print(i)
     # 在代码的路径下,新建一个picture,图片会由urlretrieve函数保存到本地
        string = 'picture/{}.jpg'.format(str(i + 1))
        request.urlretrieve(pic_url, string)
# 开始函数
def start():
   # 你想搜索的关键词
    keyword = '小姐姐'
   # 你想搜索的页数
    biggest_pages = 10
    get_picture_list(keyword, biggest_pages)
if __name__ == '__main__':
    start()

It quickly save the URL of the page flow, now Baidu is a waterfall picture, if you want to climb, you need selenium to scroll pages, too much trouble, this code can be relatively easy to obtain.

If helpful, please point a praise, thank you. Blog Park address: https: //www.cnblogs.com/chenyuan404/p/10192758.html

Published 12 original articles · won praise 3 · Views 2052

Guess you like

Origin blog.csdn.net/weixin_40902563/article/details/100086949