---
order: 0
title:
  zh-CN: 基本
  en-US: Basic
---

## zh-CN

默认选中第一项。

## en-US

Default activate first tab.

```tsx
import { Tabs } from 'antd';
import React from 'react';

const onChange = (key: string) => {
  console.log(key);
};

const App: React.FC = () => (
  <Tabs
    defaultActiveKey="1"
    onChange={onChange}
    items={[
      {
        label: `Tab 1`,
        key: '1',
        children: `Content of Tab Pane 1`,
      },
      {
        label: `Tab 2`,
        key: '2',
        children: `Content of Tab Pane 2`,
      },
      {
        label: `Tab 3`,
        key: '3',
        children: `Content of Tab Pane 3`,
      },
    ]}
  />
);

export default App;
```