如何将StatefulWidget的构造函数参数传递给State？

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('StatefulWidget Parameter Example'),
        ),
        body: Center(
          child: MyWidget(myParam: 'Hello, World!'),
        ),
      ),
    );
  }
}

class MyWidget extends StatefulWidget {
  final String myParam;

  MyWidget({required this.myParam});

  @override
  _MyWidgetState createState() => _MyWidgetState(myParam);
}

class _MyWidgetState extends State<MyWidget> {
  final String myParam;

  _MyWidgetState(this.myParam);

  @override
  Widget build(BuildContext context) {
    return Text('Parameter: $myParam');
  }
}