---
order: 0
title: 基本
---


默认选中第一项。


````jsx
import { Tabs } from 'b-rc';
const TabPane = Tabs.TabPane;

function callback(key) {
  console.log(key);
}

ReactDOM.render(
  <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>
, mountNode);
````