jingjing Chartecharts 折线配置项内容和展示

      option = {
    title: {
        text: '《人民日报》精准扶贫报道数量'
    },
    xAxis: {
        data: ['2015', '2016', '2017', '2018' ]
    },
    yAxis: {},
    series: [{
        type: 'line',
        data:[20, 46, 34, 36]
    }]
};