ntp协议的实现，可以在linux系统下编译，封装了该协议为一个功能文件，可方便在嵌入式系统直接使用，并带有demo范例程序。-ntp protocol implementation can be compiled under linux systems, packaging the agreement as a functional document, can be easily used directly in embedded systems, and with a demo sample

ntp的客户端代码可以返回ntp server的时间-The scr ipt returns the time of the ntp server.