1<view class="page">
2  <button size="default" class="link-iot-btn" onTap="scan" type="primary">
3    <image class="link-iot-btn-img" mode="scaleToFill" src="../../resource/image/scan.png"/>
4  </button>
5  <text>扫码预览 IoT Studio</text>
6</view>