echarts几秒后重新渲染数据``` import React, { useEffect } from 'react'

import React, { useEffect } from 'react';
import * as echarts from 'echarts';
const One = () => {
  let han = () => {
    var chartDom = document.getElementById('aa');
    var myChart = echarts.init(chartDom);
    var option;
    option = {
      xAxis: {
        type: 'category',
        data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
      },
      yAxis: {
        type: 'value'
      },
      series: [
        {
          data: [150, 230, 224, 218, 135, 147, 260],
          type: 'line'
        }
      ]
    };
    myChart.clear()
    option && myChart.setOption(option);

  }
  setInterval(()=>{
    han()
  },3000)
  useEffect(()=>{
    han()
  },[])
  return (
    <div>
      <div style={{width:'100%',height:'100%'}} id="aa" ></div>
    </div>
  );
}

export default One;