1. First, at the beginning of the live broadcast of the US Mission, send a request to the server to obtain the barrage list of the current live broadcast.

2. Secondly, during the live broadcast, whenever a new barrage is sent, a request will be sent to the server to obtain the latest barrage data in real time.

3. Finally, the obtained barrage data is displayed below or above the live screen, so that users can see the comments and interactions of other viewers.