如图。我想在每根5分钟k线上取到对应的小时线close值，计算小时线macd的diff。问题是，光标在5分钟K移动时，虽然回测一小时之内的data1.close不会变，但以此为计算基础的diff_H的值，却在不断改变。5分钟线的第55分钟close等于小时线的close，这时的diff_H仍然不正确。SetBasePeriod(Data0.Frequency)是关闭的。代码如下：

Vars
    Series<Numeric> Diff_H;
Events
    OnInit()
    {
        SubscribeBar(Symbol, "H",20251201);
        Range[0:1]
        {
            //SetBasePeriod(Data0.Frequency); //周期基准:5min            
        }
    }
    OnBar(ArrayRef<Integer> indexs)
    {
        Numeric diff = XAverage(Close, 12) - XAverage(Close, 26);
        Diff_H = XAverage(Data1.Close, 12) -
        XAverage(Data1.Close, 26);
        Commentary("Data1.Open:"+Text(Data1.Open,0) +
        ",Data1.Close:"+Text(Data1.Close,0));
        Commentary("diff:"+Text(diff,2));
        Commentary("Diff_H:"+Text(Diff_H,2));
    }