事件：'finish'

🌐 Event: 'finish'

当响应已发送时触发。更具体地说，当响应头和主体的最后一部分已交给 HTTP/2 多路复用以在网络上发送时，将触发此事件。这并不意味着客户端已经接收到任何内容。

🌐 Emitted when the response has been sent. More specifically, this event is emitted when the last segment of the response headers and body have been handed off to the HTTP/2 multiplexing for transmission over the network. It does not imply that the client has received anything yet.

在此事件之后，响应对象上将不再触发更多事件。

🌐 After this event, no more events will be emitted on the response object.