<view style="background-image:url('../../static/images/downtime.jpg');width:100%;height:388rpx;line-height: 304px;background-size:cover;position: fixed;top: 0;bottom: 0;left: 0;right: 0;margin: auto;    text-align: center;">
   <text style="color: #fff;font-size: 43rpx;">引爆点</text>
</view>

左边是工具，右边是真机调试