如何在Dart中为一些JSON数据创建容器？

{
  "name": "John",
  "age": 30,
  "email": "john@example.com"
}

import 'dart:convert';

void main() {
  String jsonString = '{"name": "John", "age": 30, "email": "john@example.com"}';
  Map<String, dynamic> jsonMap = json.decode(jsonString);
  
  print(jsonMap['name']); // 输出：John
  print(jsonMap['age']); // 输出：30
  print(jsonMap['email']); // 输出：john@example.com
}

import 'dart:convert';

void main() {
  String jsonString = '{"name": "John", "age": 30, "email": "john@example.com"}';
  Map<String, dynamic> jsonMap = json.decode(jsonString);
  
  // 创建容器
  Container container = Container(
    name: jsonMap['name'],
    age: jsonMap['age'],
    email: jsonMap['email'],
  );
  
  // 使用容器
  print(container.name); // 输出：John
  print(container.age); // 输出：30
  print(container.email); // 输出：john@example.com
}

class Container {
  final String name;
  final int age;
  final String email;
  
  Container({required this.name, required this.age, required this.email});
}