<cn>
#### 三种触发方式
鼠标移入、聚集、点击。
</cn>

<us>
#### Three ways to trigger
Mouse to click, focus and move in.
</us>

```html
<template>
<div>
  <a-popover title="Title" trigger="hover">
    <template slot="content">
      <p>Content</p>
      <p>Content</p>
    </template>
    <a-button type="primary">Hover me</a-button>
  </a-popover>
  <a-popover title="Title" trigger="focus">
    <template slot="content">
      <p>Content</p>
      <p>Content</p>
    </template>
    <a-button type="primary">Focus me</a-button>
  </a-popover>
  <a-popover title="Title" trigger="click">
    <template slot="content">
      <p>Content</p>
      <p>Content</p>
    </template>
    <a-button type="primary">Click me</a-button>
  </a-popover>
</div>
</template>
```
