2年同比箭头echarts pictorialBar配置项内容和展示

      var data1 = [132, 324];
var data2 = 2.6;
//定义两个上下箭头的矢量路径
var up = 'path://M286.031,265l-16.025,3L300,223l29.994,45-16.041-3-13.961,69Z';
var down = 'path://M216.969,292l16.025-3L203,334l-29.994-45,16.041,3,13.961-69Z'
//遍历data2里面元素的正负定义一个矢量路径的数组
var path = down
var data3 = [{}, {}];
if (data2 > 0) {
    data3[1] = {
        value: data1[1],
        itemStyle: {
            color: "red"
        }
    }
    path = up
}else{
    data3[1] = {
        value: data1[1],
        itemStyle: {
            color: "green"
        }
    }
    path = down
}

option = {
    color: ['#3398DB'],
    tooltip: {
        trigger: 'axis',
        axisPointer: { // 坐标轴指示器，坐标轴触发有效
            type: 'shadow' // 默认为直线，可选为：'line' | 'shadow'
        }
    },
    grid: {
        left: '3%',
        right: '4%',
        bottom: '3%',
        containLabel: true
    },
    xAxis: [{
        type: 'category',
        data: ['2019', '2020'],
        axisTick: {
            alignWithLabel: true
        }
    }],
    yAxis: [{
        type: 'value'
    }],
    series: [{
            tooltip: {
                show: false
            },
            "name": "",
            type: 'pictorialBar',
            symbol: function(data, params) {
                return path
            },
            symbolSize: [20, 30],
            symbolOffset: [0, -40],
            color: 'green',
            symbolPosition: 'end',
            label: {
                show: true,
                position: "top",
                formatter: function(params) {
                    return data2+"%"
                },
                fontSize: 30,
                fontWeight: 'bold',
                color: '#34DCFF'
            },
            data: data3
        },
        {
            name: 'mc',
            type: 'bar',
            barWidth: '40%',
            data: data1
        }
    ]
};