帮忙看下问题出在哪里？

huring

代码执行完提示：

  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36\lib\urllib\request.py", line 642, in http_response
    'http', request, response, code, msg, hdrs)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36\lib\urllib\request.py", line 570, in error
    return self._call_chain(*args)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36\lib\urllib\request.py", line 504, in _call_chain
    result = func(*args)
  File "C:\Users\Administrator\AppData\Local\Programs\Python\Python36\lib\urllib\request.py", line 650, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 404: Not Found








import urllib.request
import os

# url = 'http://jandan.net/ooxx/'
def url_open(url):
    req = urllib.request.Request(url)
    req.add_header('User-Agent',
                   'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.122 Safari/537.36')
    response = urllib.request.urlopen(url)
    html = response.read()
    print(url)
    return html
# y=url_open(url)
# print(y)

def get_page(url):
    html = url_open(url).decode('utf-8')
    a = html.find('current-comment-page') + 23
    b = html.find(']', a)
    return html[a:b]


def find_imgs(url):
    html = url_open(url).decode('utf-8')
    img_addrs = []
    a = html.find('img src=')
    while a != -1:
        b = html.find('.jpg', a, a + 255)
        if b != -1:
            img_addrs.append(html[a + 9:b + 4])
        else:
            b = a + 9
        a = html.find('img src=', b)

    for each in img_addrs:
        print(each)



def save_imgs(folder, img_addrs):
    for each in img_addrs:
        filename = each.split('/')[-1]
        with open(filename, 'wb') as f:
            img = url_open(each)
            f.write(img)
    print(img_addrs)


def download_mm(folder='o22ox13', pages=2):
    os.mkdir(folder)
    os.chdir(folder)
    url = 'http://jandan.net/ooxx/'
    page_num = int(get_page(url))
    for i in range(pages):
        page_num -= i
        page_url = url + 'page-' + str(page_num) + '#comments'
        img_addrs = find_imgs(page_url)
        save_imgs(folder, img_addrs)


if __name__ == '__main__':
    download_mm()

wp231957

404就是链接不存在啊

一个账号

就是连接不存在呀

zltzlt

网页链接不存在。