import 'package:flutter/material.dart'; void main() => runApp(MyApp()); class MyApp extends StatelessWidget { // This widget is the root of your application. @override Widget build(BuildContext context) { return MaterialApp( home: Scaffold( appBar: AppBar( title: Text('修改 Flutter 中字体的大小和颜色'), ), body: Center( child: Text( 'GetcharZp', style: TextStyle( fontSize: 50, color: Colors.red, ), ), ), ), ); } }