The provided source code example is an echo client/server that also supports file transmission (figure 4).
提供的源代码演示代码是一个echo客户端/服务器端程序，并提供了对文件传输的支持（图4）。
The client then responds with a COOKIE-ECHO, which contains the cookie sent by the server.
客户机然后就使用一个cookie - ECHO报文进行响应，其中包含了服务器所发送的cookie。
For the echo process, you have one partner: the client from where the messages to be echoed originates.
针对回送流程，您有一个伙伴：发出回送消息的客户机。
To test the new connection, try typing some text into the client, press Return, and watch the server echo that text.
为了测试新连接，试着向客户机输入一些文本，按return键，并观察服务器是否回显文本。
As an echo service, the function writes "you said..." back to the client.
作为回显服务，此函数把“yousaid…”写回客户端。
In the following example, the echo command is used to put a denial messages up to a denied client.
在以下示例中，使用echo命令将拒绝消息发送给被拒绝的客户端。
In the following example, the echo command is used to put a denial messages up to a denied client.
在以下示例中，使用echo命令将拒绝消息发送给被拒绝的客户端。
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