代码求助：如何只指定一家快递公司查询，

下面代码是快递鸟的快递查询代码，其先根据快递单号判断属于哪个快递公司，如果只是指定一家快递公司，请问如何修改呢呢？

!/usr/bin/python

encoding:utf-8

import json
import urllib
import urllib.request
import hashlib
import base64
import urllib.parse

此处为快递鸟官网申请的帐号和密码

APP_id = "1266271"
APP_key = "7526a46e-3a2a-4f5b-8659-d72f361e3386"

def encrypt(origin_data, appkey):
"""数据内容签名：把(请求内容(未编码)+AppKey)进行MD5加密，然后Base64编码"""
m = hashlib.md5()
m.update((origin_data+appkey).encode("utf8"))
encodestr = m.hexdigest()
base64_text = base64.b64encode(encodestr.encode(encoding='utf-8'))
return base64_text

def sendpost(url, datas):
"""发送post请求"""
postdata = urllib.parse.urlencode(datas).encode('utf-8')
header = {
"Accept": "application/x-www-form-urlencoded;charset=utf-8",
"Accept-Encoding": "utf-8"
}
req = urllib.request.Request(url, postdata, header)
get_data = (urllib.request.urlopen(req).read().decode('utf-8'))
return get_data

def get_company(logistic_code, appid, appkey, url):
"""获取对应快递单号的快递公司代码和名称"""
data1 = {'LogisticCode': logistic_code}
d1 = json.dumps(data1, sort_keys=True)
requestdata = encrypt(d1, appkey)
post_data = {
'RequestData': d1,
'EBusinessID': appid,
'RequestType': '2002',
'DataType': '2',
'DataSign': requestdata.decode()}
json_data = sendpost(url, post_data)
sort_data = json.loads(json_data)
return sort_data

def get_traces(logistic_code, shipper_code, appid, appkey, url):
"""查询接口支持按照运单号查询(单个查询)"""
data1 = {'LogisticCode': logistic_code, 'ShipperCode': shipper_code}
d1 = json.dumps(data1, sort_keys=True)
requestdata = encrypt(d1, appkey)
post_data = {'RequestData': d1, 'EBusinessID': appid, 'RequestType': '1002', 'DataType': '2',
'DataSign': requestdata.decode()}
json_data = sendpost(url, post_data)
sort_data = json.loads(json_data)
return sort_data

def recognise(expresscode):
"""输出数据"""
url = 'http://testapi.kdniao.cc:8081/Ebusiness/EbusinessOrderHandle.aspx'
data = get_company(expresscode, APP_id, APP_key, url)
if not any(data['Shippers']):
print("未查到该快递信息,请检查快递单号是否有误！")
else:
print("已查到该", str(data['Shippers'][0]['ShipperName'])+"("+
str(data['Shippers'][0]['ShipperCode'])+")", expresscode)
trace_data = get_traces(expresscode, data['Shippers'][0]['ShipperCode'], APP_id, APP_key, url)
if trace_data['Success'] == "false" or not any(trace_data['Traces']):
print("未查询到该快递物流轨迹！")
else:
str_state = "问题件"
if trace_data['State'] == '2':
str_state = "在途中"
if trace_data['State'] == '3':
str_state = "已签收"
print("目前状态： "+str_state)
trace_data = trace_data['Traces']
item_no = 1
for item in trace_data:
print(str(item_no)+":", item['AcceptTime'], item['AcceptStation'])
item_no += 1
print("\n")
return

while True:
code = input("请输入快递单号(Esc退出)：")
code = code.strip()
if code == "esc":
break
recognise(code)

Start at recognise(), then read get_company() and get_traces() to understand the separate company-detection and trace-query steps. The change is complete when the query can use a specified shipper code without relying on automatic company detection, while preserving the existing trace output.