study_wxapp/component/iView/spin/index.wxml

<view class="i-class i-spin i-spin-{{ size }} {{ fix ? 'i-spin-fix' : '' }} {{ custom ? 'i-spin-show-text' : '' }} {{ fullscreen ? 'i-spin-fullscreen' : '' }}">
    <div class="i-spin-main">
        <view class="i-spin-dot"></view>
        <div class="i-spin-text"><slot></slot></div>
    </div>
</view>