//数字转换
function numerbConvert(value, index) {
  if (value >= 100000000) {
    return value / 100000000 + "亿";
  } else if (value >= 10000000) {
    return value / 10000000 + "千万";
  } else if (value >= 1000000) {
    return value / 1000000 + "百万";
  } else if (value >= 10000) {
    return value / 10000 + "万";
  } else {
    return value;
  }
}

var categories = ["高一", "高二", "高三"]
var seriesData = [{
  name: "高一",
  value: 1373,
  children: [{
      appointmentType: "语文",
      checkNum: 95,
      percentage: "32.00%",
      color: "#03d3c4"
    },
    {
      appointmentType: "数学",
      checkNum: 120,
      percentage: "35.00%",
      color: "#ffbb32"
    },
    {
      appointmentType: "英语",
      checkNum: 125,
      percentage: "32.00%",
      color: "#2ccd45"
    }
  ]
}, {
  name: "高二",
  value: 1238,
  children: [{
      appointmentType: "语文",
      checkNum: 95,
      percentage: "32.00%",
      color: "#03d3c4"
    },
    {
      appointmentType: "数学",
      checkNum: 120,
      percentage: "35.00%",
      color: "#ffbb32"
    },
    {
      appointmentType: "英语",
      checkNum: 125,
      percentage: "32.00%",
      color: "#2ccd45"
    }
  ]
}, {
  name: "高三",
  value: 4225,
  children: [{
      appointmentType: "语文",
      checkNum: 95,
      percentage: "32.00%",
      color: "#03d3c4"
    },
    {
      appointmentType: "数学",
      checkNum: 120,
      percentage: "35.00%",
      color: "#ffbb32"
    },
    {
      appointmentType: "英语",
      checkNum: 125,
      percentage: "32.00%",
      color: "#2ccd45"
    }
  ]
}]

var barCharts = {
  title: {
  text: '2023年学校成绩表',
  textStyle: {
    color: '#fff',
    fontSize: 16,
    fontWeight: 100
  }
  },
  tooltip: {
  trigger: 'axis',
  axisPointer: {
    type: 'line',
    lineStyle: {
      color: '#fff',
      width: 1,
      type: 'dashed'
    }
  },
  formatter: function(params) {
    let _res = params[0].data.children
    let _list = ''
    for (let i = 0; i < _res.length; i++) {
      _list += '' + _res[i].appointmentType +
        '' + _res[i].checkNum + '/' + _res[i].percentage +
        '
'
    }
    return params[0].name + '各科成绩
' + _list
  }
  },
  grid: {
    left: '1%',
    right: '3%',
    top: '24%',
    bottom: '5%',
    containLabel: true
  },
  xAxis: {
    type: 'category',
    data: categories,
    splitLine: {
      show: false
    },
    axisTick: {
      show: false
    },
    axisLabel: {
      textStyle: {
        color: '#a8abbb',
        fontSize: 12
      }
    },
    axisLine: {
      lineStyle: {
        color: '#394773'
      }
    }
  },
  yAxis: {
    type: 'value',
    splitLine: {
      show: false
    },
    axisTick: {
      show: false
    },
    axisLabel: {
      formatter: numerbConvert,
      textStyle: {
        color: '#a8abbb',
        fontSize: 12
      }
    },
    axisLine: {
      lineStyle: {
        color: '#394773'
      }
    }
  },
  series: [{
    name: '成绩',
    type: 'bar',
    barWidth: '15',
    data: seriesData,
    itemStyle: {
      normal: {
        label: {
          show: true,  
          position: 'top',
          textStyle: {
            color: '#ceced3',
            fontSize: 12
          }
        },
        color: function(params) {
          return new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
            offset: 0,
            color: '#FE2B3E'
          }, {
            offset: 1,
            color: '#FF7E31'
          }])
        }
      }
    }
  }],
  barCategoryGap: '40%'
};
var myChart = echarts.init(document.getElementById('main'));
myChart.setOption(option);

点击运行 》