用与NS2进行网络模拟所产生的跟踪文件的解析，编写解析文件，用此分析工具对跟踪文件的数据进行提取，从而分析网络性能-With the NS2 network simulation generated by the analysis of the tracking file, the preparation of analytical documents, use this analysis tool to extract the data to extract the file to analy