描述:当前是关于Echarts图表中的 饼图 示例。
 
            option = {
  backgroundColor: '#fff',
  tooltip: {
    trigger: 'item',
    formatter: '{b}:({d}%)',
  },
  legend: [
    {
      top: 'center',
      orient: 'vertical',
      right: '10%',
      itemWidth: 16,
      itemHeight: 16,
      icon: 'circle',
      itemGap: 20,
      textStyle: {
        color: '#4E5969',
        fontSize: 18,
        padding: [0, 0, 0, 10],
      },
      data: ['商品房', '集资房', '房改房', '安居工程房', '存量房'],

    }],
  grid: {
    containLabel: true,
  },
  title: {
      text: `{a| 建筑物 }`,
      textStyle: {
         rich: {
            a: {
               fontSize: 14,
               color: '#1D2129',
            },
         },
      },
      subtext: `{a|分类}`,
      subtextStyle: {
         rich: {
            a: {
               fontSize: 14,
               color: '#1D2129',
               padding: [0, 0, 0, 7],
            },
         },
      },
      x: '37%',
      y: '46%',
   },
  series: [
    {
      type: 'pie',
      radius: ['40%', '60%'],
      center: ['40%', '50%'],
      color: [
        '#86DF6C',
        '#249EFF',
        '#0E42D2',
        '#846BCE',
        '#21CCFF',
      ],
      label: {
        position: 'outside',
        show: true,
        color: '#4E5969',
        fontSize: 16,
        formatter: function (params) {
          if (params.name !== '') {
            return params.percent + '%';
          }
        },
      },
      labelLine: {
        show: true,
        length2: 30,
        length: 10,
      },
      itemStyle: {
        normal: {
          borderWidth: 2,
          borderColor: '#fff',
        },
      },
      data: [
        { value: '36', name: '商品房' },
        { value: '48', name: '集资房' },
        { value: '31', name: '房改房' },
        { value: '29', name: '安居工程房' },
        { value: '44', name: '存量房' },
      ],
    },
  ],
}