---
category: 2
title: 目录
title_en: directory
---

 zh-CN

内置的目录树，`multiple` 模式支持 `ctrl(Windows)` / `command(Mac)` 复选。

 en-US

Built-in directory tree. `multiple` support `ctrl(Windows)` / `command(Mac)` selection.

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

const DirectoryTree = Tree.DirectoryTree;
const TreeNode = Tree.TreeNode;

class Demo extends React.Component {
  onSelect = () => {
    console.log('Trigger Select');
  };

  onExpand = () => {
    console.log('Trigger Expand');
  };

  render() {
    return (
      <DirectoryTree
        multiple
        defaultExpandAll
        onSelect={this.onSelect}
        onExpand={this.onExpand}
      >
        <TreeNode title="parent 0" key="0-0">
          <TreeNode title="leaf 0-0" key="0-0-0" isLeaf />
          <TreeNode title="leaf 0-1" key="0-0-1" isLeaf />
        </TreeNode>
        <TreeNode title="parent 1" key="0-1">
          <TreeNode title="leaf 1-0" key="0-1-0" isLeaf />
          <TreeNode title="leaf 1-1" key="0-1-1" isLeaf />
        </TreeNode>
      </DirectoryTree>
    );
  }
}

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