react ref 获取dom数组

如下文

class App extends React.Component {
  constructor() {
    super();
    this.domRefs = []
  }
  handleClick() {
    console.log(this.domRefs);
  }
  render() {
    return <>
      <div onClick={this.handleClick.bind(this)} >
        <ul>
          <li ref={r => this.domRefs.push(r)} >1</li>
          <li ref={r => this.domRefs.push(r)} >2</li>
          <li ref={r => this.domRefs.push(r)} >3</li>
          <li ref={r => this.domRefs.push(r)} >4</li>
          <li ref={r => this.domRefs.push(r)} >5</li>
        </ul>
      </div>
    </>
  }
}