父组件中有异步请求,而子组件中需要用到这个异步请求的结果
所以需要子组件延迟加载
data() {
    return {
      logoCss: {
      	width:0,
      	height:0,
        defaultImgUrl: null,
      },
    }
  },
    <mobileWidget
      v-if="logoCss.defaultImgUrl != null"
      :logo-css="logoCss"
    />
https://blog.csdn.net/weixin_37744901/article/details/106931965