如何在Vue Echarts中创建饼图？

import echarts from 'echarts'
import ECharts from 'vue-echarts'

<template>
  <div>
    <e-charts :options="chartOptions"></e-charts>
  </div>
</template>

export default {
  data() {
    return {
      chartOptions: {
        title: {
          text: '饼图示例',
          subtext: '数据来源',
          x: 'center'
        },
        tooltip: {
          trigger: 'item',
          formatter: '{a} <br/>{b} : {c} ({d}%)'
        },
        legend: {
          orient: 'vertical',
          left: 'left',
          data: ['数据1', '数据2', '数据3', '数据4', '数据5']
        },
        series: [
          {
            name: '访问来源',
            type: 'pie',
            radius: '55%',
            center: ['50%', '60%'],
            data: [
              { value: 335, name: '数据1' },
              { value: 310, name: '数据2' },
              { value: 234, name: '数据3' },
              { value: 135, name: '数据4' },
              { value: 1548, name: '数据5' }
            ],
            itemStyle: {
              emphasis: {
                shadowBlur: 10,
                shadowOffsetX: 0,
                shadowColor: 'rgba(0, 0, 0, 0.5)'
              }
            }
          }
        ]
      }
    }
  }
}