MarketDataPacketHeader

MsgSeqNum

public uint MsgSeqNum

value = marketDataPacketHeader.MsgSeqNum

信件序列号

MsgSize

public ushort MsgSize

value = marketDataPacketHeader.MsgSize

信件大小包括市场数据包标题的大小

SendingTime

public ulong SendingTime

value = marketDataPacketHeader.SendingTime

自Unix 时代起以纳米秒计发送时间, UTC时区