old_contents: import requests
  import bs4
  import os
  import urllib.request
  import shutil
  import re
  
  base_url = 'http://www.j8vlib.com/cn/vl_searchbyid.php?keyword='
  srcDir = 'F:\\utorrent\\WEST'
  filterWord = "video_jacket_img"
  
  filenames = os.listdir(srcDir)
  for filename in filenames:
      preFileName = filename.split(".")[0]
      if (preFileName[-1] == "A" or preFileName[-1] == "B" or preFileName[-1] == "C"):
          preFileName = preFileName[0:len(preFileName) - 1]
      destPicName = srcDir + os.sep + preFileName + '.jpg'
      if (os.path.isfile(destPicName)):
          print(destPicName + ' already here.\n')
      else:
          full_url = base_url + preFileName
          response = requests.get(full_url)
          soup = bs4.BeautifulSoup(response.text, "html.parser")
          try:
              imgsrc = soup.find(id = filterWord)['src']
              print(preFileName + "\n" + imgsrc)
  
              print(destPicName + "\n")
              if not (os.path.isfile(destPicName)):
                  urllib.request.urlretrieve(imgsrc, destPicName)
          except:
              print('Can not find picture of ' + filename + '\n')
new_contents: import requests
  import bs4
  import os
  import urllib.request
  import shutil
  import re
  
  base_url = 'http://www.jav11b.com/cn/vl_searchbyid.php?keyword='
  srcDir = 'H:\\temp'
  filterWord = "video_jacket_img"
  
  filenames = os.listdir(srcDir)
  for filename in filenames:
      preFileName = filename.split(".")[0]
      if (preFileName[-1] == "A" or preFileName[-1] == "B" or preFileName[-1] == "C"):
          preFileName = preFileName[0:len(preFileName) - 1]
      destPicName = srcDir + os.sep + preFileName + '.jpg'
      if (os.path.isfile(destPicName)):
          print(destPicName + ' already here.\n')
      else:
          full_url = base_url + preFileName
          response = requests.get(full_url)
          soup = bs4.BeautifulSoup(response.text, "html.parser")
          try:
              imgsrc = soup.find(id = filterWord)['src']
              print(preFileName + "\n" + imgsrc)
  
              print(destPicName + "\n")
              if not (os.path.isfile(destPicName)):
                  urllib.request.urlretrieve(imgsrc, destPicName)
          except:
              print('Can not find picture of ' + filename + '\n')
subject: Update the pic download base url.