红绿灯日期判断

Derrick.Jiao

您好，我想对单元格添加红绿灯，如下代码，请问可以判断日期吗？需要怎么写呢？我看 GC.Spread.Sheets.ConditionalFormatting.IconValueType 里没有日期类型，所以比较困惑。感谢！

//红绿灯
let range; // Type: Range
let rangeArr = [];
for(let i = 0; i < 13; i++){
range = new GC.Spread.Sheets.Range(2, 3+3*i, 21, 1);
rangeArr.push(range);
}
var iconSetRule = new GC.Spread.Sheets.ConditionalFormatting.IconSetRule();
iconSetRule.ranges( rangeArr );
iconSetRule.iconSetType(GC.Spread.Sheets.ConditionalFormatting.IconSetType.threeTrafficLightsUnrimmed);
var iconCriteria = iconSetRule.iconCriteria();
iconCriteria[0] = new GC.Spread.Sheets.ConditionalFormatting.IconCriterion(true, GC.Spread.Sheets.ConditionalFormatting.IconValueType.number, -0.02);
iconCriteria[1] = new GC.Spread.Sheets.ConditionalFormatting.IconCriterion(true, GC.Spread.Sheets.ConditionalFormatting.IconValueType.number, 0);
iconSetRule.reverseIconOrder(false);
iconSetRule.showIconOnly(false);
sheet.conditionalFormats.addRule(iconSetRule);