(爬)微信公眾號上的圖片下載

想要抓微信公眾號的精美藏傳佛教的唐卡來加入法本裡。一張張下載

有點麻煩，於是動手練習和實作抓圖。

網址：https://mp.weixin.qq.com/s?__biz=MzA5MjMzODYwMw==&mid=2650980934&idx=1&sn=bbc779a30a9dc37dfc5c0501d05f98d8&chksm=8b98c282bcef4b94c56a787dbd0cf2b437aa61374e45b138e9ed77ad1b1351ee46844ea7748f&mpshare=1&&srcid=0123qBszvYueATehmkqULd6u&sharer_sharetime=1611394994271&sharer_shareid=9ee1c47e93c47989d62b673511c9a310&scene=1&subscene=10000&clicktime=1611395817&enterid=1611395817#rd 

試著用Ｆ１２的network找不到json可直接讀取，所以用requests，和bs4解析找出img

但因為找出的img裡面包含有png和impeg，我真正要的圖檔是png

下圖的插圖和主圖檔的分辨，所以要在程式裡過濾掉jpg

jpg檔

png檔

程式碼

import requests

from bs4 import BeautifulSoup

url='https://mp.weixin.qq.com/s?__biz=MzA5MjMzODYwMw==&mid=2650980934&idx=1&sn=bbc779a30a9dc37dfc5c0501d05f98d8&chksm=8b98c282bcef4b94c56a787dbd0cf2b437aa61374e45b138e9ed77ad1b1351ee46844ea7748f&mpshare=1&&srcid=0123qBszvYueATehmkqULd6u&sharer_sharetime=1611394994271&sharer_shareid=9ee1c47e93c47989d62b673511c9a310&scene=1&subscene=10000&clicktime=1611395817&enterid=1611395817#rd'

html=requests.get(url)

soup=BeautifulSoup(html.text, 'lxml')

pics=soup.find_all('img')[2:]

imgdict=[]

try:

    for i in pics:

        相片連結=i['data-src']

        if 相片連結[-3:]=='png':

            imgdict.append(相片連結)

except:

    print("部份圖片無法下載")

num=0

for i in imgdict:

    r=requests.get(i)

    with open(r'D:\test'+'\\'+str(num)+'.png', 'wb') as file:

    

        for d in r.iter_content(10240):

            file.write(d)

        file.close()

    print("%s.jpg下載成功"%num)

    num+=1