python爬取图片,源代码

'''
Created on 2018Äê4ÔÂ19ÈÕ

@author: 2545519972£¨qq£©
'''

import os,bs4,requests
os.makedirs('Ronaldo',exist_ok = True)
url = 'http://www.5857.com/cluo/'
count = 1
while True:
    res = requests.get(url)
    res.raise_for_status()
    soup = bs4.BeautifulSoup(res.text)
    elems = soup.select('div[class="listbox"] img')
    try:
        for elem in elems:
            res1 = requests.get(elem.get('src'))
            res.raise_for_status()
            imagefile = open(os.path.join('Ronaldo','Ronaldo %s' %count) ,'wb')
            if count == 10:
                break
            count = count + 1
            for chunk in res1.iter_content(10000):
                imagefile.write(chunk)
            imagefile.close()
    except:
        print('craw failed')
    if count == 10:
        break