ant-design/components/menu/demo/vertical.md

order	title
3	[{zh-CN 垂直菜单} {en-US Vertical menu}]

zh-CN

子菜单是弹出的形式。

en-US

Submenus open as pop-ups.

import { Menu } from 'antd';
import { MailOutlined, AppstoreOutlined, SettingOutlined } from '@ant-design/icons';

const { SubMenu } = Menu;

function handleClick(e) {
  console.log('click', e);
}

ReactDOM.render(
  <Menu onClick={handleClick} style={{ width: 256 }} mode="vertical">
    <SubMenu key="sub1" icon={<MailOutlined />} title="Navigation One">
      <Menu.ItemGroup title="Item 1">
        <Menu.Item key="1">Option 1</Menu.Item>
        <Menu.Item key="2">Option 2</Menu.Item>
      </Menu.ItemGroup>
      <Menu.ItemGroup title="Item 2">
        <Menu.Item key="3">Option 3</Menu.Item>
        <Menu.Item key="4">Option 4</Menu.Item>
      </Menu.ItemGroup>
    </SubMenu>
    <SubMenu key="sub2" icon={<AppstoreOutlined />} title="Navigation Two">
      <Menu.Item key="5">Option 5</Menu.Item>
      <Menu.Item key="6">Option 6</Menu.Item>
      <SubMenu key="sub3" title="Submenu">
        <Menu.Item key="7">Option 7</Menu.Item>
        <Menu.Item key="8">Option 8</Menu.Item>
      </SubMenu>
    </SubMenu>
    <SubMenu key="sub4" icon={<SettingOutlined />} title="Navigation Three">
      <Menu.Item key="9">Option 9</Menu.Item>
      <Menu.Item key="10">Option 10</Menu.Item>
      <Menu.Item key="11">Option 11</Menu.Item>
      <Menu.Item key="12">Option 12</Menu.Item>
    </SubMenu>
  </Menu>,
  mountNode,
);