toolbox 自定义图形echarts 折线配置项内容和展示

      option = {
    series: [{
        type: 'line',
        data: [1, 2, 1.2]
    }],
    xAxis: {},
    yAxis: {
        data: [1, 2, 3]
    },
    toolbox: {
        show: true,
        feature: {
            saveAsImage: {
                icon: 'path://M100,0 L41.22,180.90 L195.10,69.09 L4.89,69.09 L158.77,180.90 z'
            }
        }
    }
}