我想要显示图标或图像，而不是仅在Flutter中显示文本

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('Flutter 图标与图像示例'),
        ),
        body: Center(
          child: Image.asset('assets/images/example.png'), // 确保assets/images目录下有example.png文件
        ),
      ),
    );
  }
}

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('Flutter 图标与图像示例'),
        ),
        body: Center(
          child: Icon(Icons.star, size: 50), // 使用Material Design图标库中的星星图标
        ),
      ),
    );
  }
}

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

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Flutter 图标与图像示例'),
        ),
        body: Center(
          child: Image.network('https://example.com/path/to/image.jpg'), // 替换为有效的图像URL
        ),
      ),
    );
  }
}