/// <summary>行情数据返回：更新本地数据</summary>
/// ??根据合约ID 触发对应回调？
private void onRtnDepthMarketData(String[] resStr)
{
MD md = new MD();
md.SetData(resStr);
int index = instrumentIndex[md.InstrumentID];
marketData[index - 1].Add(md);
int thisCount = marketData[index - 1].Count;
long thisVolume = 0;
if (thisCount >= 2)
{
thisVolume = marketData[index - 1][thisCount - 1].Volume - marketData[index - 1][thisCount - 2].Volume;
}
FormTool.DisplayMarketData(md.GetData(thisVolume));
}