什么是js面相对象

// 使用构造函数和原型实现
function Person(name, age) {
    this.name = name;
    this.age = age;
}

Person.prototype.sayHello = function() {
    console.log(`Hello, my name is ${this.name} and I'm ${this.age} years old.`);
}

const person1 = new Person('Alice', 25);
person1.sayHello();

// 使用 ES6 类实现
class PersonClass {
    constructor(name, age) {
        this.name = name;
        this.age = age;
    }

    sayHello() {
        console.log(`Hello, my name is ${this.name} and I'm ${this.age} years old.`);
    }
}

const person2 = new PersonClass('Bob', 30);
person2.sayHello();