Everyone a great god, the younger brother into the pit python crawler recently, imitate the example of online writing a crawl ctrip ticket data code, but the output in this way, don't get what they want the data content, can you help to see what's the problem? [/code] [/code]
The code is as follows:

 import datetime 
The import requests 
The import hashlib 
The import json 
The from bs4 import BeautifulSoup # web information data acquisition data resolution (web page) 
Import # re - text matching regular expressions (web data extraction) 
The import XLWT # for excel operation (data into excel) 

# define routes list 
One_way=[' SZX - CGO ', 'SZX - CGQ', 'SZX - CKG', 'SZX - CTU', 'SZX - CZX', 'SZX - DLC', 'SZX - coated, 
'SZX - HET', 'SZX - HFE', 'SZX - HGH', 'SZX - HRB', 'SZX - INC', 'SZX - KHN', 'SZX - KMG', 'SZX - LHW, 
'SZX LJG -', 'SZX - LYI', 'SZX - MIG', 'SZX - NGB', 'SZX - NKG', 'SZX - NNG', 'SZX - the NTG', 'SZX - PEK, 
'SZX - PKX', 'SZX - PVG', 'SZX - SHA', 'SZX - SHE', 'SZX - SJW', 'SZX - SYX', 'SZX - TAO', 'SZX - TCZ, 
'SZX - TNA', 'SZX - passes on', 'SZX - TYN', 'SZX - URC', 'SZX - WNZ', 'SZX - WUH', 'SZX WUX -', 'SZX - XIY' 
'SZX - XNN', 'SZX - YIH', 'SZX YNT -', 'SZX - ZHA] 

# define date section list 
Datelist=[] 
For I in range (1, 14) : 
Datelist. Append ((datetime. Datetime. Now () + datetime. Timedelta (days=I)). The strftime (' Y - m - % d % %)) 

# main program 
Def the main () : 
Baseurl='https://flights.ctrip.com/international/search/' # foundation link 
# get page parameter, transactionid 
GetData (baseurl) 

# get web transactionID, signID, parameter 
Def getData (baseurl) : 
# for I in range (0, len (one_way) : 
For I in range (0, 1) : 
# for j in range (0, len (datelist) : 
For j in range (0, 1) : 
Url=baseurl + 'oneway -' + STR (one_way [I]) + '?='+ STR (depdate datelist [j] +' & amp; Cabin=Y_S_C_F ') # generate complete foundation link url 
The response=requests. Get (url, headers={' the user-agent ':' Mozilla/5.0 (Windows NT 10.0; Win64. X64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36 '}) # for base web content 

# a basic web page parameter 
Data=https://bbs.csdn.net/topics/re.findall (r 'GlobalSearchCriteria=(. +); 'and the response. The text) [0]. Encode (' utf-8') # a basic web page parameter 

# to get basic web transactionid 
TransactionId=json. Loads (data). The get (" transactionId ") 

# to get basic web signID 
Sign_value=https://bbs.csdn.net/topics/transactionId + one_way one_way [I] [3-0] + [I] [- 3:] + datelist [j] 
SignID=hashlib. The md5 () 
SignID. Update (sign_value. Encode (' utf-8)) 
Askurl (transactionId, data, signID) 


Def askurl (transactionId, data, signID) : 
Headers={
'the user-agent' : 'Mozilla/5.0 (Windows NT 10.0; Win64. X64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36 ', 
'the content-type' : 'application/json. Charset=utf-8 ', 
'transactionid: transactionid, 
'sign' : signID hexdigest () 
} # simulation header information, disguised as a browser 
The response=requests. Post (
Url="https://flights.ctrip.com/international/search/api/search/batchSearch", 
Headers=headers, 
data=https://bbs.csdn.net/topics/data 
) 
The response. The encoding="utf-8" 
Print (response. Json (). The get (" data ")) 


# main program entrance 
If __name__=="__main__ ': 
The main ()