semi-design/packages/semi-ui/tree/_story/Demo.tsx

import React from 'react';
import Tree from '../index';

const Demo = () => {
    const treeData = [
        {
            label: 'Asia',
            value: 'Asia',
            key: '0',
            children: [
                {
                    label: 'China',
                    value: 'China',
                    key: '0-0',
                    children: [
                        {
                            label: 'Beijing',
                            value: 'Beijing',
                            key: '0-0-0',
                        },
                        {
                            label: 'Shanghai',
                            value: 'Shanghai',
                            key: '0-0-1',
                        },
                    ],
                },
                {
                    label: 'Japan',
                    value: 'Japan',
                    key: '0-1',
                    children: [
                        {
                            label: 'Osaka',
                            value: 'Osaka',
                            key: '0-1-0'
                        }
                    ]
                },
            ],
        },
        {
            label: 'North America',
            value: 'North America',
            key: '1',
            children: [
                {
                    label: 'United States',
                    value: 'United States',
                    key: '1-0'
                },
                {
                    label: 'Canada',
                    value: 'Canada',
                    key: '1-1'
                }
            ]
        }
    ];
    const style = {
        width: 260,
        height: 420,
        border: '1px solid var(--semi-color-border)'
    }
    return (
        <div>
            <Tree filterTreeNode treeData={ treeData } style={ style } onChange={ (ev: any) => { console.log(ev) } } />
        </div>
    );
}

export default Demo