JS对象的几种创建方式

1、工厂模式创建对象

function createPerson(name,age,job){ ???var o ?= new Object(); ???o.name = name; ???o.age = age; ???o.job = job; ???o.sayName = function(){ ????????alert(this.name); ???????}; ???return o; ?????}var person1 = createPerson(‘Qian‘,21,‘student‘);var person2 = createPerson(‘Qian1‘,20,‘student‘);

2、构造函数创建对象

function Person(name,age,job){ ???this.name = name; ???this.age = age; ???this.job = job; ???this.sayName = function(){ ???????alert(this.name); ???}; ???????}

var person1 = createPerson(‘Qian‘,21,‘student‘);var person2 = createPerson(‘Qian1‘,20,‘student‘);

3、Object构造函数创建

var Person = new Object();
Person.name = ‘Qian‘;
Person.age = 21;