ant-design/components/tree/demo/basic.md

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

## zh-CN

最简单的用法，展示可勾选，可选中，禁用，默认展开等功能。

## en-US

The most basic usage, tell you how to use checkable, selectable, disabled, defaultExpandKeys, and etc.

```tsx
import { Tree } from 'antd';

const treeData = [
  {
    title: 'parent 1',
    key: '0-0',
    children: [
      {
        title: 'parent 1-0',
        key: '0-0-0',
        disabled: true,
        children: [
          {
            title: 'leaf',
            key: '0-0-0-0',
            disableCheckbox: true,
          },
          {
            title: 'leaf',
            key: '0-0-0-1',
          },
        ],
      },
      {
        title: 'parent 1-1',
        key: '0-0-1',
        children: [{ title: <span style={{ color: '#1890ff' }}>sss</span>, key: '0-0-1-0' }],
      },
    ],
  },
];

const Demo = () => {
  const onSelect = (selectedKeys: React.Key[], info: any) => {
    console.log('selected', selectedKeys, info);
  };

  const onCheck = (checkedKeys: React.Key[], info: any) => {
    console.log('onCheck', checkedKeys, info);
  };

  return (
    <Tree
      checkable
      defaultExpandedKeys={['0-0-0', '0-0-1']}
      defaultSelectedKeys={['0-0-0', '0-0-1']}
      defaultCheckedKeys={['0-0-0', '0-0-1']}
      onSelect={onSelect}
      onCheck={onCheck}
      treeData={treeData}
    />
  );
};

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