import requests
import json

url = 'https://m.ctrip.com/restapi/soa2/13444/json/getCommentCollapseList"pc_vid":"1601607319353.3cid9z"}; MKT_Pagesource=PC; _RF1=218.58.59.72; _bfa=1.1601607319353.3cid9z.1.1602506738089.1602680023977.4.25; _bfi=p1%3D290510%26p2%3D290510%26v1%3D25%26v2%3D24; MKT_CKID_LMT=1602680029515; __zpspc=9.5.1602680029.1602680029.1%232%7Cwww.baidu.com%7C%7C%7C%25E6%2590%25BA%25E7%25A8%258B%7C%23; _gid=GA1.2.1363667416.1602680030; _jzqco=%7C%7C%7C%7C1602680029668%7C1.672451398.1601607321899.1602506755440.1602680029526.1602506755440.1602680029526.undefined.0.0.16.16',
'cookieorigin': 'https://you.ctrip.com',
'origin': 'https://you.ctrip.com',
'pragma': 'no-cache',
'referer': 'https://you.ctrip.com/',
'sec-fetch-dest': 'empty',
'sec-fetch-mode': 'cors',
'sec-fetch-site': 'same-site',
'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36'
}

dat = {
 "arg": {
  'channelType': 2,
  'collapseType': 0,
  'commentTagId': 0,
  'pageIndex': 1,
  'pageSize': 10,
  'poiId': 75648,
  'sortType': 3,
  'sourceType': 1,
  'starType': 0
 },
 "head": {
  'auth': "",
  'cid': "09031117213661657011",
  'ctok': "",
  'cver': "1.0",
  'extension': [],
  'lang': "01",
  'sid': "8888",
  'syscode': "09",
  'xsid': ""
 }
}

r = requests.post(url, data=json.dumps(dat), headers=header)
s = r.json()
print(s)