series: [{ type: 'bar', name: '起飞', barWidth: '20px', //柱状图的宽度 itemStyle: { normal: { //显示渐变色颜色 color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [ { offset: 0, color: '#09c9c5' }, { offset: 1, color: '#003791' } ]), }, }, label: { show: true, po