Initial division of labor and ideas

[xiongl3]

This week, we briefly assigned each other's responsibilities and discussed the project's theme and specific functionalities that can be implemented. My task is to complete the suscribe part of the code.The SUBSCRIBE part primarily involves a client (subscriber) sending a subscription request to the server (MQTT broker) to receive messages from one or more specific topics.The subscribers need to be able to establish and maintain a TCP connection with the MQTT broker. The subscribers need to send SUBSCRIBE packets to the MQTT broker to request receiving messages from one or more specific topics. These topics can represent different school information, such as class schedules, exam notifications, student grades, etc. Based on the received message content, the subscribers can perform corresponding actions, such as updating the student interface, triggering school event notifications, recording exam dates, etc. In addition, error handling and retry mechanisms can be added, and the security of the school information system can be enhanced by implementing student authentication and authorization mechanisms.