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

order	title
3	zh-CN en-US 触发方式 Trigger mode

zh-CN

默认是移入触发菜单，可以点击触发。

en-US

The default trigger mode is hover, you can change it to click.

import { Menu, Dropdown, Icon } from 'antd';

const menu = (
  <Menu>
    <Menu.Item key="0">
      <a href="http://www.alipay.com/">1st menu item</a>
    </Menu.Item>
    <Menu.Item key="1">
      <a href="http://www.taobao.com/">2nd menu item</a>
    </Menu.Item>
    <Menu.Divider />
    <Menu.Item key="3">3rd menu item</Menu.Item>
  </Menu>
);

ReactDOM.render(
  <Dropdown overlay={menu} trigger={['click']}>
    <a className="ant-dropdown-link" href="#">
      Click me <Icon type="down" />
    </a>
  </Dropdown>,
  mountNode,
);