echarts 修改y軸坐標名稱

 yAxis: {
        type: 'value',
        name: '營業額(元)',
        axisTick: {
            inside: true
        },
        scale: true,
        axisLabel: {
            margin: 2,
            formatter: function (value, index) {
                if (value >= 10000 && value < 10000000) {
                    value = value / 10000 + "萬";
                } else if (value >= 10000000) {
                    value = value / 10000000 + "千萬";
                }
                return value;
            }
        }
    }