1.包含客户端和服务器两部分程序，并且两个程序能分开独立运行。

2.客户端可以输入服务器地址和端口，连接服务器。

3.客户端可以往服务器发送信息。

4.服务器能接受客户端连接，并输出客户端发送过的字符串。

5:用图形化界面展现客户端和服务器通讯的效果 -1. Contains two parts, client and server programs, and separate the two processes can run independently. 2. Clients can enter the server address and port, connect to the server. 3. Client can send a message to the server. 4. Server can accept client connections, and output the client sent a string. 5: The graphical interface shows the client and server communication effectiveness