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代码如下,是对照着小甲鱼的代码来的 但是不知道出现了ValueError。。。
- 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; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 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()
复制代码
错误如下:
- 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; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 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:
- string = 'http:' + html[a+9:b+4] # 修改
- img_addrs.append(string) # 修改
- ################################################
- 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()
复制代码
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