js面向对象编程(二) 构造函数继承

构造函数绑定

//基类建筑物
var building = function () {
    this.spec = "building";
};

//address:房子地址，toward:房子朝向
var house = function (address, toward) {
    this.address = address;
    this.toward = toward;
};

//使房子继承建筑物

//使用call或者apply方法，将父对象的构造函数绑定在子对象上，在子对象构造函数中加一行

house = function (address, toward) {
        building.apply(this, arguments);
       this.address = address;
        this.toward = toward;
};

var redHouse = new house("四川省成都市高兴西区星辉街9527号","坐北朝南");
alert(redHouse.spec);  //building

prototype模式

house.prototype = new building();
house.prototype.constructor = house;
redHouse = new house("四川省成都市高兴西区星辉街9527号", "坐北朝南");
alert(redHouse.species); //building

js面向对象编程(一) 封装

参考文章：http://www.ruanyifeng.com/blog/2010/05/object-oriented_javascript_inheritance.html