react 循环嵌套

<div>
    <ul>
        {this.state.treeData.map(item => {
            var items = item.children.map(ite => {
                return (
                    <Checkbox checked={this.state.checked} onChange={this.onChange}>{ite.name}</Checkbox>
                )
            })
            return (
                <li>{items}</li>
            )
        })}
    </ul>
</div>