Packet packet = new Packet();
while(packet != null)
{
packet = jpcap.getPacket();
TCPPacket tcp = (TCPPacket)jpcap.getPacket();
IPPacket ipp = (IPPacket)packet;
UDPPacket udp = (UDPPacket)jpcap.getPacket();
ipp = (IPPacket)tcp;
}
TCPPacket tcp =(TCPPacket)jpcap.getPacket(); 此行得到了错误jpcap.packet.Packet不能转换到jpcap.packet.TCPPacket 为什么?请帮忙解决这个问题.thanksjpcap.packet.Packet无法转换为jpcap.packet.TCPPacket