我該如何解決這個錯誤?FLEX:作業的對象必須是參考值
Target of assignment must be a reference value
for (var z:int=0; z<this.tags.getItemAt(i).yearPopularity.length; z++) {
summedPopularity.getItemAt(z) = summedPopularity.getItemAt(z) + tags.getItemAt(i).yearPopularity.getItemAt(z);
}
感謝