所以我有一个这样的函数:varlocalIndices:[ChartHighlight]=[]forglobalHighlightinglobalIndices{ifletglobalSet=data?.dataSets[globalHighlight.dataSetIndex]{ifglobalSet.dynamicType===dataSetType{letchartData=getChartData(dataSetType)if(chartData==nil){returnglobalIndices}letlocaldataSetIndex=chartData!.dataSets