ECHARTS-BAR

https://echarts.apache.org/examples/zh/editor.html?c=bar-negative

option = {
  tooltip: {
    trigger: 'axis',
    axisPointer: {
      type: 'shadow'
    }
  },
  legend: {
    data: ['Profit', 'Expenses', 'Income']
  },
  grid: {
    left: '3%',
    right: '4%',
    bottom: '3%',
    containLabel: true
  },
  xAxis: [
    {
      type: 'value'
    }
  ],
  yAxis: [
    {
      type: 'category',
      axisTick: {
        show: false
      },
      data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
    }
  ],
  series: [
    {
      name: 'Profit',
      type: 'bar',
      label: {
        show: true,
        position: 'inside'
      },
      emphasis: {
        focus: 'series'
      },
      data: [60,60,60,60,60,60,60]
    },
    {
      name: 'Income',
      type: 'bar',
      stack: 'Total',
      label: {
        show: true
      },
      emphasis: {
        focus: 'series'
      },
      data: [60,60,60,60,60,60,60]
    },
    {
      name: 'Expenses',
      type: 'bar',
      stack: 'Total',
      label: {
        show: true,
        position: 'left'
      },
      emphasis: {
        focus: 'series'
      },
      data: [40,40,40,40,40,40,40]
    }
  ]
};

渐变

https://www.cnblogs.com/persistIn/p/17754334.html

echart刷新问题

https://www.python100.com/html/71412.html