对比一下老龙的简易的JS OOP 类和继承 # https://github.com/huya-fed/class/blob/master/README.md
兼容ie7、8
if(!Object.create){
Object.create = function(o){
function F(){};
F.prototype = o;
return new F();
};
}
外部属性
function fly(){
alert("我飞起来了！");
}
一只猪
var Pig = {
initialize:function(name){
this.name = name;
},
talk:function(){
alert("我是" + this.name);
}
};
一只红色的猪
var RedPig = Object.create(Pig);
RedPig.color = '红色';
一只会飞的红色的猪
var FlyableRedPig = Object.create(RedPig);
FlyableRedPig.fly = fly;
FlyableRedPig.swim = function(){
alert("我还会游泳！");
};
创建实例
var pig = Object.create(FlyableRedPig);
pig.initialize("飞天红猪侠");
pig.talk();
pig.fly();
pig.swim();