Events 
    OnReady()
    {
        SetBackBarMaxCount(1 + Max(Length, MALength));
    }
 
    OnBar(ArrayRef<Integer> indexs)
    {
        Range[0:DataSourceSize() - 1]
        {
            // 计算20日移动平均线 
            MAValue = AverageFC(Close, MALength);
 
            // 计算典型价格TYP 
            TYP = (High + Low + Close) / 3;
 
            // 计算CCI指标 
            Mean = AverageFC(TYP, Length);
            AvgDev = 0;
 
            // 声明并初始化Counter变量 
            For Counter = 0 to Length - 1 
            {
                AvgDev = AvgDev + Abs(TYP[Counter] - Mean);
            }
            AvgDev = AvgDev / Length;
 
            if (AvgDev == 0)
                CCIValue = 0;
            else 
                CCIValue = (TYP - Mean) / (0.015 * AvgDev);
 
            // 绘制主图和副图指标 
            PlotNumeric("MA", MAValue);
            PlotNumeric("CCI", CCIValue, 0, 0, 1); // 将CCI绘制在副图 
            PlotNumeric("OverBuy", 100, 0, 0, 1);
            PlotNumeric("OverSell", -100, 0, 0, 1);