<cn>
  #### 预加载的卡片
  数据读入前会有文本块样式
</cn>

<us>
  #### Loading card
  Shows a loading indirector while the contents of the card is being featched
</us>

```html
<template>
  <a-card loading title="Card title" style="width: 34%;">
    whatever content
  </a-card>
</template>
```