React重置或清除输入

class MyForm extends React.Component {
  constructor(props) {
    super(props);
    this.state = { value: '' };
  }

  handleChange(event) {
    this.setState({ value: event.target.value });
  }

  handleReset() {
    this.setState({ value: '' });
  }

  render() {
    return (
      <div>
        <input type="text" value={this.state.value} onChange={this.handleChange.bind(this)} />
        <button onClick={this.handleReset.bind(this)}>重置</button>
      </div>
    );
  }
}

class MyForm extends React.Component {
  constructor(props) {
    super(props);
    this.inputRef = React.createRef();
  }

  handleReset() {
    this.inputRef.current.value = '';
  }

  render() {
    return (
      <div>
        <input type="text" ref={this.inputRef} />
        <button onClick={this.handleReset.bind(this)}>重置</button>
      </div>
    );
  }
}