如何使用导出模块中的模型？

// models/User.js
export class User {
  constructor(name, email) {
    this.name = name;
    this.email = email;
  }

  greet() {
    console.log(`Hello, ${this.name}!`);
  }
}

export const ADMIN_USER = new User('Admin', 'admin@example.com');

// app.js
import { User, ADMIN_USER } from './models/User.js';

const user = new User('Alice', 'alice@example.com');
user.greet();

console.log(ADMIN_USER);

# models/user.py
class User:
    def __init__(self, name, email):
        self.name = name
        self.email = email

    def greet(self):
        print(f"Hello, {self.name}!")

ADMIN_USER = User('Admin', 'admin@example.com')

# app.py
from models.user import User, ADMIN_USER

user = User('Alice', 'alice@example.com')
user.greet()

print(ADMIN_USER)

// models/User.java
package models;

public class User {
    private String name;
    private String email;

    public User(String name, String email) {
        this.name = name;
        this.email = email;
    }

    public void greet() {
        System.out.println("Hello, " + name + "!");
    }

    public static final User ADMIN_USER = new User("Admin", "admin@example.com");
}

// app.java
import models.User;

public class App {
    public static void main(String[] args) {
        User user = new User("Alice", "alice@example.com");
        user.greet();

        System.out.println(User.ADMIN_USER);
    }
}