循环遍历图表 

index.vue主页面

  <view v-if="powerPage">
        <view v-for="(item, index) in powerDetailsData.addMap" :key="index">
          <PowerEChartsCity
            :echartData="powerDetailsData.addMap[index]"
          ></PowerEChartsCity>
        </view>
      </view> 

子页面子组件

  props: {
    echartData: {
      type: Array,
      default: () => {
        return [];
      },
    },
  },


  watch: {
      echartData: {
        handler(newValue, oldValue) {
         this.echartDataList=newValue;
          this.echart();
        },
      },
      deep: true,
      immediate: true,
    },