carInsightSystem_wxapp/components/c-echars/index.wxml

<!--pages/components/custom-echarts/index.wxml-->
<view style="height: {{ height }}; width:100%;">
  <ec-canvas force-use-old-canvas="{{false}}" wx:if="{{showChart}}" id="{{ chartId }}" canvas-id="eventBar" ec="{{ec}}" options="{{chartOption}}"></ec-canvas>
</view>