编写客户/服务器程序，客户端Client.java使用DatagramSocket对象将数据包发送到服务器，请求获取服务器端的图像（考生可自选图像文件）。服务器端Server.java将图像文件包装成数据包，并使用DatagramSocket对象将该数据包发送到客户端。首先将服务器端的程序编译通过，并运行起来，等待客户的请求。-The preparation of client/server program, client Client.java use DatagramSocket object data packets sent to the server, requesting access to server-side image (Candidates may be optional graphics file). Server-side image file Server.java will be packaged into data packets, and use the DatagramSocket object to send the packet to the client. First, the procedure will be compiled by the server-side and up and running, waiting for client requests.