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---
order: 0
title:
zh-CN: 基本
en-US: Basic
---
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## zh-CN
默认选中第一项。
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## en-US
Default activate first tab.
```jsx
import { Tabs } from 'antd';
const { TabPane } = Tabs;
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function callback(key) {
console.log(key);
}
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const Demo = () => (
<Tabs defaultActiveKey="1" onChange={callback}>
<TabPane tab="Tab 1" key="1">
Content of Tab Pane 1
</TabPane>
<TabPane tab="Tab 2" key="2">
Content of Tab Pane 2
</TabPane>
<TabPane tab="Tab 3" key="3">
Content of Tab Pane 3
</TabPane>
</Tabs>
);
ReactDOM.render(<Demo />, mountNode);
```