将我的帖子更改为Flutter中的JSON数组

import 'dart:convert';

void main() {
  // 定义帖子列表
  List<Post> posts = [
    Post(id: 1, title: 'Flutter入门', content: '欢迎来到Flutter世界！'),
    Post(id: 2, title: 'Flutter进阶', content: '学习Flutter的高级技巧。'),
    Post(id: 3, title: 'Flutter实战', content: '开发实际的Flutter应用。'),
  ];

  // 将帖子列表转换为JSON字符串
  String jsonStr = jsonEncode(posts);

  // 打印JSON字符串
  print(jsonStr);

  // 将JSON字符串转换为帖子列表
  List<Post> decodedPosts = List<Post>.from(jsonDecode(jsonStr).map((x) => Post.fromJson(x)));

  // 打印解码后的帖子列表
  decodedPosts.forEach((post) {
    print('ID: ${post.id}');
    print('标题: ${post.title}');
    print('内容: ${post.content}');
    print('---');
  });
}

class Post {
  int id;
  String title;
  String content;

  Post({this.id, this.title, this.content});

  factory Post.fromJson(Map<String, dynamic> json) {
    return Post(
      id: json['id'],
      title: json['title'],
      content: json['content'],
    );
  }
}