堆叠条形图chartist.js中的边界半径

new Chartist.Bar('.ct-chart', {
  series: [
    [5, 3, 4, 2],
    [2, 4, 6, 8],
    [1, 2, 3, 4]
  ]
}, {
  stackBars: true,
  axisX: {
    showGrid: false
  },
  axisY: {
    showGrid: true
  },
  chartPadding: {
    top: 20,
    right: 10,
    bottom: 20,
    left: 10
  },
  plugins: [
    Chartist.plugins.tooltip()
  ],
  // 设置边界半径
  barChartOptions: {
    seriesBarDistance: 10,
    chartPadding: {
      top: 15,
      right: 15,
      bottom: 5,
      left: 10
    },
    // 设置边界半径
    barStyle: {
      borderRadius: 10
    }
  }
});