ant-design-vue/components/button/demo/basic.md

<cn>
#### 按钮类型
按钮有四种类型：主按钮、次按钮、虚线按钮、危险按钮。主按钮在同一个操作区域最多出现一次。
</cn>

<us>
#### Type
There are `primary` button, `default` button, `dashed` button and `danger` button in antd.
</us>

```html
<template>
  <div>
    <a-button type="primary">Primary</a-button>
    <a-button>Default</a-button>
    <a-button type="dashed">Dashed</a-button>
    <a-button type="danger">Danger</a-button>
  </div>
</template>
```