闲着没事写了个获取 downurl 的伪代码
```python
import requests
import json
data = {'pageNo':1,'lawType':1}
rep = requests.post('https://neris.csrc.gov.cn/falvfagui/rdqsHeader/informationController' , data = data)
json_data = rep.json()
total_num = json_data['pageUtil']['rowCount']
data1 = {'pageNo':1,'lawType':1,'pageSize':total_num}
rep1 = requests.post('https://neris.csrc.gov.cn/falvfagui/rdqsHeader/informationController' , data = data1)
json_data1 = rep1.json()
json_list = json_data1['pageUtil']['pageList']
down_urls = []
for i in json_list:
down_url = f'''https://neris.csrc.gov.cn/falvfagui/rdqsHeader/download?secFutrsLawName={i['secFutrsLawName']}.pdf'''
down_urls.append(down_url)
down_urls
```