option ={ grid:{ top:'20%', bottom:0, right:'5%', left:'0', containLabel:true, }, tooltip: { trigger: 'axis', confine:true, }, xAxis: { type: 'category', }, yAxis:{ name:'元/吨', min:'dataMin', }, dataset:{ dimensions:['日期','采购价'], source:[ {'日期':'2019-01-02','采购价':100}, {'日期':'2019-01-05','采购价':400} ] }, series: { type:'line', smooth:true, symbol: 'circle', symbolSize:2, sampling: 'average', connectNulls:true, label:{ // show:true }, itemStyle: { color: '#ffc858' }, lineStyle:{ width:1 }, areaStyle: { color: new echarts.graphic.LinearGradient( 0, 0, 0, 1, [ {offset: 0, color: '#ffc858'}, {offset: 1, color: 'rgba(255,200,88,0)'} ] ) } }, }