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跟随小甲鱼老师的视频,
在使用代理之前,
全程按照老师的代码写,
结果跑起来还是报错,
求牛人指点,
谢谢!
代码如下:
import urllib.request
import os
def url_open(url):
req = urllib.request.Request(url)
req.add_header('User-Agent', 'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36')
response = urllib.request.urlopen(url)
html = response.read()
return html
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)
return img_addrs
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)
def download_mm(folder='ooxx', pages=10):
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()
根据你的错误,你的图片的地址不对,我去煎蛋网上审查元素发现获取回来的图片地址都少了http:开头,在每次下载图片之前加上http:就可以了
你要尝试自己调试下,除了自己去网站审查元素
还有一个方法就是你觉得可能出错的地方或者变量加上print语句
- def save_imgs(folder, img_addrs):
- for each in img_addrs:
- each = 'http:' + each
- filename = each.split('/')[-1]
- with open(filename, 'wb') as f:
- img = url_open(each)
- f.write(img)
复制代码
附上我修改的部分,可以下载,不过我没有全爬,估计还有其他问题,因为看到一些图片的地址不对
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