main. dart import 'package:flutter/material.dart'; import 'package:new_flutter/model.dart'; import 'package:new_flutter/person_page.dart'; void main() { runApp(const MyApp()); } class MyApp extends StatelessWidget { const MyApp({Key? key}) : super(key: key); @override Widget build(BuildContext context) { return MaterialApp( home: MyPage(), ); } } class MyPage extends StatefulWidget { const MyPage({Key?
key}) : super(key: key); @override State createState() => _MyPageState(); } class _MyP...