解决Vue中使用Echarts出现There is a chart instance already initialized on the dom的警告问题

const taskDetailDom = ref()
const open = ()=> {
    if (taskDetailDom.value) {
        taskDetailDom.value.initEchart()
    }
}

<script setup lang='ts'>
import echarts from "@/utils/custom/echart"
let tChart: Ref<HTMLDivElement | null> = ref(null)
const initEchart = () => {
   const dom = tChart.value
   if (dom) {
      let myChart = echarts.init(dom)
      myChart.setOption(option)
   }
}
defineExpose({
   initEchart
})

import * as echarts from 'echarts/core';
import {
    BarChart,
    LineChart,
    PieChart
} from 'echarts/charts';
import {
    LegendComponent,
    TitleComponent,
    TooltipComponent,
    GridComponent,
    // 数据集组件
    DatasetComponent,
    // 内置数据转换器组件 (filter, sort)
    TransformComponent
} from 'echarts/components';
import { LabelLayout, UniversalTransition } from 'echarts/features';
import { CanvasRenderer } from 'echarts/renderers';
import type {
    // 系列类型的定义后缀都为 SeriesOption
    BarSeriesOption,
    LineSeriesOption
} from 'echarts/charts';
import type {
    // 组件类型的定义后缀都为 ComponentOption
    LegendComponentOption,
    TitleComponentOption,
    TooltipComponentOption,
    GridComponentOption,
    DatasetComponentOption
} from 'echarts/components';
import type {
    ComposeOption,
} from 'echarts/core';
// 通过 ComposeOption 来组合出一个只有必须组件和图表的 Option 类型
type ECOption = ComposeOption<
    | BarSeriesOption
    | LegendComponentOption
    | LineSeriesOption
    | TitleComponentOption
    | TooltipComponentOption
    | GridComponentOption
    | DatasetComponentOption
>;
// 注册必须的组件
echarts.use([
    LegendComponent,
    TitleComponent,
    TooltipComponent,
    GridComponent,
    DatasetComponent,
    TransformComponent,
    BarChart,
    LineChart,
    PieChart,
    LabelLayout,
    UniversalTransition,
    CanvasRenderer
]);
export default echarts;

let tChart: Ref<HTMLDivElement | null> = ref(null)
let myChart: any // 1. 最外层定义 echarts dom
const initEchart = () => {
   const dom = tChart.value
   if (dom) {
      // 2. 判断 dom 是否为空或未定义
      if (myChart != null && myChart != "" && myChart != undefined) {
        // 3. 已存在则调用 dispose() 方法销毁
         myChart.dispose();
      }
      myChart = echarts.init(dom)
      myChart.setOption(option)
   }
}
defineExpose({
   initEchart
})