MiniPrograms_Activity/components/Chart/Chart.wxml

<!--components/Chart/Chart.wxml-->
<view wx:if="{{show}}" class="canvas">
  <view class="btnType" wx:if="{{btnList.length}}">
    <view 
    bindtap="changeselect" 
    data-type="{{item.type}}" 
    class="{{'chartBtn' + (item.type === select ? ' active' : '')}}" 
    wx:for="{{btnList}}" wx:key="name">{{item.name}}</view>
  </view>
  <ec-canvas id="{{id}}" canvasId="{{canvasId}}" ec="{{ ec }}"></ec-canvas>
</view>