echarts试一试

series下面添加了showBackground属性，动画时底色背景不同步跟随柱图

javascript">showBackground: true,
backgroundStyle: {borderRadius: 9,color: 'RGB(255,199,91, 0.2)'
}

javascript">
const data = [];
for (let i = 0; i < 5; ++i) {data.push(Math.round(Math.random() * 200));
}
option = {xAxis: {max: 'dataMax'},yAxis: {type: 'category',data: ['A', 'B', 'C', 'D', 'E'],inverse: true,animationDuration: 300,animationDurationUpdate: 300,max: 4 // only the largest 3 bars will be displayed},series: [{realtimeSort: true,name: 'X',type: 'bar',data: data,label: {show: true,position: 'right',valueAnimation: true},showBackground: true,backgroundStyle: {borderRadius: 9,color: 'RGB(255,199,91, 0.2)'},animation: true}],legend: {show: true},animationDuration: 0,animationDurationUpdate: 3000,animationEasing: 'linear',animationEasingUpdate: 'linear',animation: true
};
function run() {for (var i = 0; i < data.length; ++i) {if (Math.random() > 0.9) {data[i] += Math.round(Math.random() * 2000);} else {data[i] += Math.round(Math.random() * 200);}}myChart.setOption({series: [{type: 'bar',data}]});
}
setTimeout(function () {run();
}, 0);
setInterval(function () {run();
}, 2000);