以下是一个使用Python编写的提醒快递到达指定地点的代码，它可以通过调用API获取快递的物流信息，并在快递到达指定地点时发送邮件进行提醒。```pythonimport requestsimport jsonimport timeimport smtplibfrom email.mime.text import MIMEText# 定义API地址和参数api_url = 'https://api.kdniao.com/Ebusiness/EbusinessOrderHandle.aspx'api_key = '填写您的API Key'api_secret = '填写您的API Secret'express_company = '填写您要查询的快递公司代码'express_number = '填写您要查询的快递单号'destination = '填写您要提醒的快递到达地点'# 定义邮件发送参数mail_host = '填写您的SMTP服务器地址'mail_port = 465mail_user = '填写您的发件人邮箱'mail_password = '填写您的发件人邮箱密码'mail_sender = '填写您的发件人邮箱'mail_receiver = '填写您的收件人邮箱'# 定义查询快递信息的函数def query_express_state(): params = { 'RequestType': '1002', 'EBusinessID': api_key, 'RequestData': json.dumps({ 'OrderCode': '', 'ShipperCode': express_company, 'LogisticCode': express_number }), 'DataType': 2 } headers = { 'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8' } response = requests.post(api_url, data=params, headers=headers) result = json.loads(response.text) if result['Success']: state = result['State'] if state == '3': for trace in result['Traces']: if destination in trace['AcceptStation']: return True return False else: return None# 定义发送邮件的函数def send_email(subject, message): mail_body = MIMEText(message, 'plain', 'utf-8') mail_body['From'] = mail_sender mail_body['To'] = mail_receiver mail_body['Subject'] = subject smtp = smtplib.SMTP_SSL(mail_host, mail_port) smtp.login(mail_user, mail_password) smtp.sendmail(mail_sender, mail_receiver, mail_body.as_string()) smtp.quit()# 主程序while True: result = query_express_state() if result is None: print('查询快递信息失败') break elif result: print('快递已到达指定地点，发送提醒邮件') send_email('您的快递已到达指定地点', '您的快递已经到达指定地点，请尽快取件') break else: print('快递还未到达指定地点，继续查询') time.sleep(60) # 每隔60秒查询一次快递状态```在使用本代码前，请确保已安装必要的Python库：requests、smtplib等。并且在使用API前，请先到快递鸟官网注册并获取API Key和API Secret。