electricity_bill_calc_wx/components/mp-html/index.wxml

<view class="_root {{selectable?'_select':''}}" style="{{containerStyle}}"><slot wx:if="{{!nodes[0]}}"/><node id="_root" childs="{{nodes}}" opts="{{[lazyLoad,loadingImg,errorImg,showImgMenu,selectable]}}" catchadd="_add"/></view>