Raknet 对Packet的问题

[zack_hoo]

unsigned char GetPacketIdentifier(Packet *p)
{
    if((unsigned char)p->data[0]==ID_TIMESTAMP)
         return (unsigned char) p->data[sizeof(unsigned char) + sizeof(unsigned long)];
    else
       return (unsigned char)p->data[0];
}


在以上的函数中
if((unsigned char)p->data[0]==ID_TIMESTAMP)
    return (unsigned char) p->data[sizeof(unsigned char) + sizeof(unsigned long)];
这段代码是什么意思，什么要这p->data的第“6”个字节内容
谢谢~~~~

[xiaocuiming88]

这是协议的问题吧！