一、创建对象
1.1初始化器
var any={
name:"some",
age:10,
action:function(){
alert(this.name+":"+this.age);
}
};
1.2构造方法
function some(name,age){
this.name=name;
this.age=age;
this.action=function(){
alert(this.name+":"+this.age);
}
}
var aa = new some("bb",5);
aa.action();
1.3属性
function C(){
this.objPro = "对象属性";
C.prototype.objPro2="对象属性2";
var privateObj = "私有属性";
}
C.classPro = "类属性";
1.4对象方法
function C(){
var privateFun = function(){
alert("私有方法");
}
this.objFun = function(){
alert("对象方法");
}
this.prototype.objFun = function(){
alert("对象方法");
}
}
C.classFun = function(){
alert("类方法");
}
二、封装
var any={
name:"some",
age:10,
action:function(){
alert(this.name+":"+this.age);
}
};
三、继承
3.1Dog还是Dog
function Animal(name,age){
}
function Dog(name,age){
Animal.apply(this,[name,age]);
}
3.2Dog变成Animal了
function Animal(name,age){
}
function Dog(name,age){
Animal.apply(this,[name,age]);
}
Dog.prototype=new Animal();
四、多态
function Animal(name,age){
this.say=function(){
}
}
function Dog(name,age){
this.say=function(){
}
}
Dog.prototype = new Animal();
function Cat(name,age){
this.say=function(){
}
}
Cat.prototype = new Animal();
function say(){
if(animal instanceof Animal){
animal.say();
}
}