<cn>
#### block 按钮
`block`属性将使按钮适合其父宽度。
</cn>

<us>
#### block Button
`block` property will make the button fit to its parent width.
</us>

```vue
<template>
  <div>
    <a-button type="primary" block>
      Primary
    </a-button>
    <a-button block>
      Default
    </a-button>
    <a-button type="dashed" block>
      Dashed
    </a-button>
    <a-button type="danger" block>
      Danger
    </a-button>
    <a-button type="link" block>
      Link
    </a-button>
  </div>
</template>
```
