三种常见模式：工厂模式，构造函数模式，原型模式
<span style="font-size:18px;"><!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Object</title>
</head>
<body>
<h1>创建对象常见的三种方式</h1>
</body>
<script>
window.onload=function(){
//工厂模式
function oj(){
var lio=new Object();
lio.name='lio';
lio.attr='男';
lio.hobby=function(){
var li=document.createElement("p");
var txt=document.createTextNode("三妹");
li.appendChild(txt);
document.body.appendChild(li);
};
return lio;
}
var person=oj();
//alert(person.name);
//构造函数模式
function oj2(name,age){
this.name=name;
this.age=age;
this.hobby=function(){
var li=document.createElement("p");
var txt=document.createTextNode("三妹");
li.appendChild(txt);
document.body.appendChild(li);
}
}
var person2=new oj2('三妹',123);
person2.hobby();
alert(person2.name);
//原型模式
function oj3(){
//this.name='lio';
}
oj3.prototype.name='lio';
oj3.prototype.love= function (name) {
alert("爱"+name);
};
var person3=new oj3();
//检測是在实例中还是在原型中
alert(person3.hasOwnProperty("name"));
alert(person3.hasOwnProperty("rename"));
person3.love('三妹');
//混合模式
function oj4(age) {
this.age=age;
this.rename='aaaa';
};
oj4.prototype={
constructor:oj4,
name:'lio',
age:123,
love: function (name) {
alert(name+"爱三妹");
}
};
var person4=new oj4(18);
alert(person4.hasOwnProperty("age"));//true
person4.love('lio');
}
</script>
</html></span>