测试网络延时的server端源代码，与client端一起使用测试pc—pc数据传输时间，也可以测试两台pc的系统时间差。-Test network latency server side source code, used in conjunction with the client-side test pc-pc data transfer time, you can test the system time difference between two pc.

测试网络延时的client端源代码，与server端一起使用测试pc—pc数据传输时间，也可以测试两台pc的系统时间差。-Testing the client-side network delay source code, used in conjunction with server-side test pc-pc data transfer time, you can also test the difference between the two pc' s system time.