该程序模拟路由器中路由查找的过程。对每一个IP包，路由器都必须在路由表中进行一次最长前缀匹配查找，继而将IP包逐跳转发到其目的地址。该程序集中模拟最长前缀匹配(Longest Prefix Matching)这个过程。-The program simulated router routing lookup process. For each IP packet, the router must be conducted in the routing table to find the longe