说明：  该程序通过利用WinPcap提供的函数pcap_loop（pcap_t* p,int cnt,pcap_handle dispatch_handle,u_char* user）将数据包捕获。并在dispatch_handle（u_char *,const pcap_pkthdr *header,const u_char *pkt_data）中通过编写代码实现解析。
(The program provided through the use of WinPcap function pcap_loop (pcap_t* p, int cnt, pcap_handle dispatch_handle, u_char* user) to capture packets. And dispatch_handle (u_char*, const pcap_pkthdr* header, const u_char* pkt_data) in code through the preparation of analytical realize.)