自助仪表盘的堆积图如何显示合计

function main(page: IPage, portlet: IEChartsPortlet) {
    let options = portlet.getChartOptions() //获取图形对象
    console.log('options: ', options)
    let series = options.series
    // let length = series[0].data.length
    let data0 = series[0].data
    let data1 = series[1].data
    let totals:string[] = []
    for (let i in data0) {
        let value0 = data0[i].value[1]
        let value1 = data1[i].value[1]
        let total = (value0 + value1).toFixed(2)
        totals.push(total)
    }
    series[1].label = {
        normal: {
            position: 'top',
            show: true,
            formatter: function(a: any) {
                return totals[a.dataIndex];
            }
        },
     emphasis: {
            position: 'top',
            show: true,
            formatter: function(a: any) {
                return totals[a.dataIndex];
            }
        }
    }
    portlet.setChartOptions(options)
}