用分析文件的方法对pcap文件进行解包，pcap文件是tcpdump的标准文件；如果用libpcap开发，要用p_open_offline函数。样例代码，供学习，欢迎指正。-Analysis of documents on file pcap unpack, pcap file is the standard document tcpdump If libpcap development, use p_open_offline function. Sample code for learnin

8583通讯原代码，经过测试可使用，数据的压包解包都没问题-8583 Communications of the original code, can be tested using data compression package no problem unpacking