public void SerializeWithHead(MemoryStream stream)
{
long begin = stream.Position;
ProtocolHead head = ProtocolHead.ShareHead;
head.Reset();
head.msgId = GetMessageID();
head.Serialize(stream);
Serialize(stream);
long position = stream.Position;
int length = (int)(position - begin - 4);
stream.Position = begin;
stream.Write(head.GetBytes(length), 0, 4);
stream.Position = position;
}
