1 import requests
 2 from lxml import etree
 3 import os
 4 if __name__ == "__main__":
 5     url = "https://aspx.sc.chinaz.com/query.aspx"
 6     headers = {
 7         "User-Agent":"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.25 Safari/537.36 Core/1.70.3868.400 QQBrowser/10.8.4394.400"
 8     }
 9     if not os.path.exists('./zhanzhangsucai1'):
10         os.mkdir('./zhanzhangsucai1')
11     for page in range(11, 26):
12         page = str(page)
13         param = {
14             "keyword": "免费",
15             "issale": "",
16             "classID": "864",
17             "page": page
18         }
19         page_text = requests.get(url=url, params=param, headers=headers).text
20         tree = etree.HTML(page_text)
21         div_list = tree.xpath('//div[@class="box col3 ws_block"]')
22         print('第' + page + '页下载中')
23         for li in div_list:
24             detail_url = 'https:' + li.xpath('./a/@href')[0]
25             detail_page_text = requests.get(url=detail_url, headers=headers).text
26             detail_page_text = detail_page_text.encode('iso-8859-1').decode('utf-8')
27             detail_tree = etree.HTML(detail_page_text)
28             href_li = detail_tree.xpath('//div[@class="clearfix mt20 downlist"]/ul/li')[0]
29             ppt_url = href_li.xpath('./a/@href')[0]
30             ppt_Name = li.xpath('./a/img/@alt')[0] + '.rar'
31             file_data = requests.get(url=ppt_url, headers=headers).content
32             ppt_path = 'zhanzhangsucai1/' + ppt_Name
33             with open(ppt_path, 'wb') as fp:
34                 fp.write(file_data)
35                 print(ppt_Name, '下载成功！！！')
36         print('第' + page + '页下载完成')