var Student = {
    name: ‘Robot‘,
    height: 1.2,
    run: function () {
        console.log(this.name + ‘ is running...‘);
    }
};

var xiaoming = {
    name: ‘小明‘
};

xiaoming.__proto__ = Student;   //仅用于演示目的。一般不要直接用obj.__proto__去改变一个对象的原型

// 原型对象:
var Student = {
    name: ‘Robot‘,
    height: 1.2,
    run: function () {
        console.log(this.name + ‘ is running...‘);
    }
};

function createStudent(name) {
    // 基于Student原型创建一个新对象:
    var s = Object.create(Student);
    // 初始化新对象:
    s.name = name;   // s的name属性赋值为新的name参数
    return s;
}

var xiaoming = createStudent(‘小明‘);
xiaoming.run(); // 小明 is running...
xiaoming.__proto__ === Student; // true