服务器通过socket连接向客户端发送字符串"Hello, you are connected!"。只要在服务器上运行该服务器软件，在客户端运行客户软件，客户端就会收到该字符串。 -Server through the socket connection to the client sends the string " Hello, you are connected!" . As long as the server running the server software, client software running on the client, the client will receive the string.