SocketAddress.parse(input)

input <string> 包含 IP 地址和可选端口的输入字符串，例如 123.1.2.3:1234 或 [1::1]:1234。

¥input <string> An input string containing an IP address and optional port, e.g. 123.1.2.3:1234 or [1::1]:1234.

返回：<net.SocketAddress> 如果解析成功，则返回 SocketAddress。否则返回 undefined。

¥Returns: <net.SocketAddress> Returns a SocketAddress if parsing was successful. Otherwise returns undefined.