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

---
order: 4
title:
  zh-CN: 触发事件
  en-US: Click event
---

## zh-CN

点击菜单项后会触发事件，用户可以通过相应的菜单项 key 进行不同的操作。

## en-US

An event will be triggered when you click menu items, in which you can make different operations according to item's key.

```jsx
import { Menu, Dropdown, message, Space } from 'antd';
import { DownOutlined } from '@ant-design/icons';

const onClick = ({ key }) => {
  message.info(`Click on item ${key}`);
};

const menu = (
  <Menu
    onClick={onClick}
    items={[
      {
        label: '1st menu item',
        key: '1',
      },
      {
        label: '2nd menu item',
        key: '2',
      },
      {
        label: '3rd menu item',
        key: '3',
      },
    ]}
  />
);

export default () => (
  <Dropdown overlay={menu}>
    <a onClick={e => e.preventDefault()}>
      <Space>
        Hover me, Click menu item
        <DownOutlined />
      </Space>
    </a>
  </Dropdown>
);
```