Flutter :如何在未来的方法之外使用字符串数据？

String myString = "Hello, Flutter!";

class Constants {
  static const String myString = "Hello, Flutter!";
}

enum Strings {
  hello,
  flutter,
}

void main() {
  String myString = Strings.hello.toString();
  print(myString); // 输出：Strings.hello
}

import 'package:flutter/material.dart';
import 'package:flutter_localizations/flutter_localizations.dart';

void main() {
  runApp(
    MaterialApp(
      localizationsDelegates: [
        GlobalMaterialLocalizations.delegate,
        GlobalWidgetsLocalizations.delegate,
      ],
      supportedLocales: [
        const Locale('en', 'US'), // 英文
        const Locale('zh', 'CN'), // 中文
      ],
      home: MyHomePage(),
    ),
  );
}

class MyHomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(AppLocalizations.of(context).hello),
      ),
      body: Center(
        child: Text(AppLocalizations.of(context).flutter),
      ),
    );
  }
}

class AppLocalizations {
  static AppLocalizations of(BuildContext context) {
    return Localizations.of<AppLocalizations>(context, AppLocalizations);
  }

  String get hello => "Hello";
  String get flutter => "Flutter";
}