事件：'connectionAttempt'

¥Event: 'connectionAttempt'

• ip <string> 套接字尝试连接的 IP。

  ¥ip <string> The IP which the socket is attempting to connect to.

• port <number> 套接字尝试连接的端口。

  ¥port <number> The port which the socket is attempting to connect to.

• family <number> IP 家族。对于 IPv6 可以是 6，对于 IPv4 可以是 4。

  ¥family <number> The family of the IP. It can be 6 for IPv6 or 4 for IPv4.

当开始新的连接尝试时触发。如果在 socket.connect(options) 中启用了系列自动选择算法，则可能会多次触发此消息。

¥Emitted when a new connection attempt is started. This may be emitted multiple times if the family autoselection algorithm is enabled in socket.connect(options).