’’’
import requests
import re
import os
from lxml.etree import HTML

def request_link(link):
"""链接请求"""
headers_dict = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/62.0.3202.89 Safari/537.36'}

request = requests.get(link, headers=headers_dict, allow_redirects=True, verify=True)  # 提交网址

if 200 <= request.status_code <= 206:  # 判断响应状态码
    htmlData = request.text.encode('utf-8').decode('ISO-8859-1')
    return htmlData

else:
    return None

def extract_fields(pattern, datas, flags, m=1):
"""提取字段"""
findField = re.search(pattern, datas, flags=flags)
if findField:
findField = findField.group(1)
if m:
if '<' in findField:
findField = re.sub('<(.*?)>', '', findField, flags=re.S)
return findField.replace(' ', '')
else:
return findField
else:
return 'null'

def download(fileName, url, path):
"""下载附件"""
try:
print('下载中，请耐心等待...')
r = requests.get(url)
with open(path + fileName, "wb") as File:
File.write(r.content)
print(fileName, '下载Ok')
except:
print(fileName, '下载失败')

def main():
for i in range(98): # 循环迭代列表翻页
if not i: # 判断第一页
url = 'http://www.liyang.gov.cn/default.php?mod=article&fid=163250&s99679207_start=0'
else: # 其它列表页
url = 'http://www.liyang.gov.cn/default.php?mod=article&fid=163250&s99679207_start=+i'

    print('\n正在提取列表第%s页item的详情链接...\n' % str(i + 1))
    data = request_link(url)  # 列表页面的链接请求
    if data:
        # print(len(data))

        tree = HTML(data)  # 列表页面
        urlList = tree.xpath('//span[@class="link_14"]/a')  # 匹配列表页面的item的详情链接
        if urlList:
            print('列表第%s页共计条目:' % str(i + 1), len(urlList))
            v = 1
            for url in urlList:
                url_i = 'http://www.liyang.gov.cn/'+ url.get('href')
                print(url_i)
                # try:
                print(v, '正在提取链接:', url_i, '的字段数据...')
                datas = request_link(url_i)  # 详情页面的链接请求
                print(len(datas))
                if datas:

                    trees = HTML(datas)  # 详情页面
                    title = trees.xpath('//font[@class="link_19"]/text()')  # 匹配标题
                    if title:
                        title = title[0]
                        # print(title)

                        date = trees.xpath('//font[@class="link_19"]/text()')[0].split()[0]  # 发布日期
                        print(date)

                        path = './data/%s/' %title
                        try:
                            os.mkdir(path)  # 创建储存数据和附件的目录
                        except:
                            pass

                    content = extract_fields(r'<font class="link_19">(.*?)</font>', datas,re.S)  # 公示文本纯内容
                    content = content.replace('&nbsp;', '').replace('&nbsp;', '').replace('&ldquo;', '')
                    # print(content)
                    contents = extract_fields(r'<td class="mod_font08_t.link_14">(.*?)</td>', datas,re.S, 0)  # 公示文本div
                    # print(contents)
                    if '<img' in contents:  # 判断图片
                        imgUrls = re.findall(r'src="(.*?)"', contents, 0)
                        for imgUrl in imgUrls:
                            imgUrl = 'http://www.liyang.gov.cn' + imgUrl
                            print(imgUrl)
                            download(imgUrl.split('/')[-1], imgUrl, path)  # 下载图片

                    if '<a' in contents:  # 判断附件
                        fileUrls = re.findall(r'href="(.*?)"', contents, 0)
                        for fileUrl in fileUrls:
                            fileUrl = 'http://www.liyang.gov.cn' + fileUrl
                            print(fileUrl)
                            download(fileUrl.split('/')[-1], fileUrl, path)  # 下载附件

                    with open(path + 'data.txt', 'w', encoding='utf-8') as f:  # 储存页面源代码及数据内容
                        f.write(title + '\n\n' + date + ' ' + '溧阳环保' + '\n\n' + content)

                # except:
                #     print('响应或解析异常！！')
                #     pass

                v += 1

if name == 'main':
main()
’’’
这里是源码
这个是目标网站的详情页‘http://www.liyang.gov.cn/default.php?mod=article&do=detail&tid=146309700&sid=’
求助求助