当我提交事件(reactJs app)时，如何清除我的输入？

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

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

  handleSubmit = (event) => {
    event.preventDefault();
    // 处理提交逻辑
    // 清除输入
    this.setState({ inputValue: '' });
  }

  render() {
    return (
      <form onSubmit={this.handleSubmit}>
        <input type="text" value={this.state.inputValue} onChange={this.handleChange} />
        <button type="submit">提交</button>
      </form>
    );
  }
}

<input type="text" id="myInput" />
<button onclick="clearInput()">提交</button>

<script>
function clearInput() {
  document.getElementById("myInput").value = "";
}
</script>