把下面代码每一根柱子颜色都改成不一样的并给出代码thisdefineload3 function o2loadechartUrl function 基于准备好的dom初始化echarts实例 var mySale = echartsinitdocumentgetElementByIdsale; 指定图表的配置项和数据 var data = dat

this.define("load3", function () { o2.load(echartUrl, function () { // 基于准备好的dom，初始化echarts实例 var mySale = echarts.init(document.getElementById('sale'));

// 指定图表的配置项和数据
var data = [
  { date: '2021-01-01', orders: 100 },
  { date: '2021-01-02', orders: 150 },
  { date: '2021-01-03', orders: 120 },
  { date: '2021-01-04', orders: 180 },
  { date: '2021-01-05', orders: 200 },
  { date: '2021-01-06', orders: 160 },
  { date: '2021-01-07', orders: 220 }
];

// 配置项
var option = {
  title: {
    text: '食堂订单数量变化图'
  },
  tooltip: {
    trigger: 'axis'
  },
  legend: {
    data: ['订单数量']
  },
  xAxis: {
    data: data.map(item => item.date)
  },
  yAxis: [
    {
      type: 'value',
      name: '订单数量',
      min: 0,
      max: Math.max(...data.map(item => item.orders)) + 50,
      axisLabel: {
        formatter: '{value} 个'
      }
    }
  ],
  series: [
    {
      name: '订单数量',
      type: 'bar',
      itemStyle: {
        color: function(params) {
          var colorList = [
            '#c23531','#2f4554','#61a0a8','#d48265','#91c7ae',
            '#749f83','#ca8622','#bda29a','#6e7074','#546570',
            '#c4ccd3'
          ];
          return colorList[params.dataIndex];
        }
      },
      data: data.map(item => item.orders)
    },
    {
      name: '订单数量',
      type: 'line',
      itemStyle: {
        color: '#c23531'
      },
      lineStyle: {
        color: '#c23531'
      },
      data: data.map(item => item.orders)
    }
  ]
};
// 使用刚指定的配置项和数据显示图表。
mySale.setOption(option);

}.bind(this)); })