NOTE: as a good coding practice, there should be only one port identifier per line, as shown below.

注意：作为一个编码的好习惯，最好一行声明一个标识符，如下所示。

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The addresses specify the two machines at each end while the port Numbers ensure that the connection between the two computers has a unique identifier.

地址用来标识一个连接两端的两台计算机，而端口号则确保两台计算机之间的连接都有一个唯一的标识符。

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A server mode connection is created by passing a string that identifies an end point (protocol dependent identifier, for example, a port number) on the local host to the Connector.open method.

通过将标识本地主机上端点(取决于协议的标识符，例如，端口号)的字符串传递给Connector . open方法来创建服务器方式连接。

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