用NS2进行完网络模拟后，接下来最重要的就是如何处理模拟的结果:trace文件，本文系统的介绍了如何使用awk处理trace文件以分析网络的性能-Carried out using NS2 network simulation finished, the next most important thing is how to deal with simulation results: trace files, the system introduced in this article how t