ant-design/components/dropdown/demo/trigger.md

# 触发方式

- order: 2

点击或鼠标移入触发。

---

````jsx
import { Menu, Dropdown, Button, Icon } from 'antd';

const menu = <Menu>
  <Menu.Item key="0">
    <a href="http://www.alipay.com/">第一个菜单项</a>
  </Menu.Item>
  <Menu.Item key="1">
    <a href="http://www.taobao.com/">第二个菜单项</a>
  </Menu.Item>
  <Menu.Divider/>
  <Menu.Item key="3">第三个菜单项</Menu.Item>
</Menu>;

ReactDOM.render(<div>
  <Dropdown overlay={menu} trigger={["click"]}>
    <Button type="primary">
      点击触发 <Icon type="down" />
    </Button>
  </Dropdown>
  <Dropdown overlay={menu}>
    <Button>
      鼠标移入 <Icon type="down" />
    </Button>
  </Dropdown>
</div>, document.getElementById('components-dropdown-demo-trigger'));
````