JS面向对象，初探

1、基于Object对象

var person = new Object();
person.name = 'My Name';
person.age = 18;
person.getName = function(){
    return this.name;
}

2、对象字面量方式（比较清楚的查找对象包含的属性及方法）

var person = {
    name : 'My name',
    age : 18,
    getName : function(){
        return this.name;
    }
}

3、工厂模式

function createPerson(name, age, job) {
    var o = new Object();
    o.name = name;
    o.age = age;
    o.job = job;
    o.getName = function () {
        return this.name;
    }
    return o;//使用return返回生成的对象实例
}
var person = createPerson('Jack', 19, 'SoftWare Engineer');

4、构造函数模式

function Person(name,age,job){
    this.name = name;
    this.age = age;
    this.job = job;
    this.getName = function () {
        return this.name;
    }
}
var person1 = new Person('Jack', 19, 'SoftWare Engineer');

var person2 = new Person('Liye', 23, 'Mechanical Engineer');

5、原型模式

function Person(){
}
Person.prototype.name = 'Jack';//使用原型来添加属性
Person.prototype.age = 29;
Person.prototype.getName = function(){
    return this.name;
}
var person1 = new Person();
alert(person1.getName());//Jack
var person2 = new Person();
alert(person1.getName === person2.getName);//true;共享一个原型对象的方法

6、组合构造函数及原型模式（jQuery的封装模式）

function Person(name, age, job) {
    this.name = name;
    this.age = age;
    this.job = job;
    this.lessons = ['Math', 'Physics'];
}
Person.prototype = {
    constructor: Person,//原型字面量方式会将对象的constructor变为Object，此外强制指回Person
    getName: function () {
        return this.name;
    }
}
var person1 = new Person('Jack', 19, 'SoftWare Engneer');
person1.lessons.push('Biology');
var person2 = new Person('Lily', 39, 'Mechanical Engneer');
alert(person1.lessons);//Math,Physics,Biology
alert(person2.lessons);//Math,Physics
alert(person1.getName === person2.getName);//true,//共享原型中定义方法