--- order: 9 title: zh-CN: 新增和关闭页签 en-US: Add & close tab --- ## zh-CN 只有卡片样式的页签支持新增和关闭选项。使用 `closable={false}` 禁止关闭。 ## en-US Only card type Tabs support adding & closable. +Use `closable={false}` to disable close. ```jsx import { Tabs } from 'antd'; const { TabPane } = Tabs; const initialPanes = [ { title: 'Tab 1', content: 'Content of Tab 1', key: '1' }, { title: 'Tab 2', content: 'Content of Tab 2', key: '2' }, { title: 'Tab 3', content: 'Content of Tab 3', key: '3', closable: false, }, ]; class Demo extends React.Component { newTabIndex = 0; state = { activeKey: initialPanes[0].key, panes: initialPanes, }; onChange = activeKey => { this.setState({ activeKey }); }; onEdit = (targetKey, action) => { this[action](targetKey); }; add = () => { const { panes } = this.state; const activeKey = `newTab${this.newTabIndex++}`; const newPanes = [...panes]; newPanes.push({ title: 'New Tab', content: 'Content of new Tab', key: activeKey }); this.setState({ panes: newPanes, activeKey, }); }; remove = targetKey => { const { panes, activeKey } = this.state; let newActiveKey = activeKey; let lastIndex; panes.forEach((pane, i) => { if (pane.key === targetKey) { lastIndex = i - 1; } }); const newPanes = panes.filter(pane => pane.key !== targetKey); if (newPanes.length && newActiveKey === targetKey) { if (lastIndex >= 0) { newActiveKey = newPanes[lastIndex].key; } else { newActiveKey = newPanes[0].key; } } this.setState({ panes: newPanes, activeKey: newActiveKey, }); }; render() { const { panes, activeKey } = this.state; return ( {panes.map(pane => ( {pane.content} ))} ); } } ReactDOM.render(, mountNode); ```