时间服务器，包含服务端和客户端，2个版本一个是exe版本的服务端和客户端 一个是纯java写的服务端和客户端，此2个版本均已测试，可以使用-Time server, including server and client, two versions of a version of the service is exe client and one is written in pure java and client service, the two versions have been test