我的 python 请求返回 401 而邮递员返回 200

Question

我做了我的请求类，代码如下：class RunMethod:def post_main(self, url, data, header=None):    res = None    if header != None:        res = requests.post(url=url, data=data, headers=header)    else:        res = requests.post(url=url, data=data)    return res.json()def get_main(self, url, data=None,header=None):    res = None    if header != None:        res = requests.get(url=url,data=data,headers=header,verify=False)    else:        res = requests.get(url=url,data=data,verify=False)    return res.json()def run_main(self, method,url,data=None,headers=None):    res = None    if method == 'get':        res = self.get_main(url, data, headers)    else:        res = self.post_main(url, data, headers)我从查尔斯那里捕获一个 api 并在邮递员中测试它，它返回 200。我从邮递员导出 python 代码，它是这样的：import requestsurl = "https://stargate.ar.elenet.me/minimart.service/intelligent/invoke"querystring = {"traceId": "1000000294010",           "shelfCode": "lu8ssMgCpgq00FDYdpX76Q..", "tracedAt": "1545641563164"}payload = ""headers = {'X-STARGATE-ACCESS-TOKEN': "d7594351-0663-43a8-ad55-180c8b29db82",'Cookie': "SID=NTVMAu8FKskyj06ln8J9uhS45fgcRNk1V3jQ; USERID=2228440841",'Authorization': "ElemeAPI token",'cache-control': "no-cache"}response = requests.request("GET", url, data=payload, headers=headers, params=querystring)print(response.text)它有效，我改变了我的班级，将数据如下：url = "https://stargate.ar.elenet.me/minimart.service/intelligent/invoke?traceId=1000000294010&shelfCode=lu8ssMgCpgq00FDYdpX76Q..&tracedAt=1545641563164"headers = {    'X-STARGATE-ACCESS-TOKEN': "d7594351-0663-43a8-ad55-180c8b29db82",    'Cookie': "SID=NTVMAu8FKskyj06ln8J9uhS45fgcRNk1V3jQ; USERID=2228440841",    'Authorization': "ElemeAPI token",    'cache-control': "no-cache",    'Content-Type':'application/json'}exam = RunMethod()res = exam.run_main('get', url, headers)我只是将查询字符串放入 url，但它返回 401。我不知道它错在哪里。有人可以帮我吗？多谢！