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.

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

const { TreeNode } = Tree;

class Demo extends React.Component {
  onSelect = (selectedKeys, info) => {
    console.log('selected', selectedKeys, info);
  }

  onCheck = (checkedKeys, info) => {
    console.log('onCheck', checkedKeys, info);
  }

  render() {
    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={this.onSelect}
        onCheck={this.onCheck}
      >
        <TreeNode title="parent 1" key="0-0">
          <TreeNode title="parent 1-0" key="0-0-0" disabled>
            <TreeNode title="leaf" key="0-0-0-0" disableCheckbox />
            <TreeNode title="leaf" key="0-0-0-1" />
          </TreeNode>
          <TreeNode title="parent 1-1" key="0-0-1">
            <TreeNode title={<span style={{ color: '#1890ff' }}>sss</span>} key="0-0-1-0" />
          </TreeNode>
        </TreeNode>
      </Tree>
    );
  }
}

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