1。用函数构造
A.声明时同时设置属性和方法
function func(){
this.name = "myname";
this.say = function(){alert("i said:")}
}
引用时:
var obj = new func();
alert(obj.name);
obj.say();
B.先声明后使用:
function func(){
}
var obj = new func();
obj.name = "myname";
obj.say = function(){alert("I said:")}
引用时:
alert(obj.name);
obj.say();
2.用 Object:
创建和设置:
var obj = new Object();
obj.name = "myname";
obj.say = function(){alert("xx")}
引用时:
alert(obj.name);
obj.say();
3.以json(javascript object nonation[符号]):
A.先声明,后赋值
var obj = {};
obj.name = "myname";
obj.say = function(){alert("i said:")}
引用:
alert(obj.name);
obj.say();
B.声明同时赋值:
var obj = {name:"yourname", say:function(){alert("I say:")}}
引用时:
alert(obj.name);
obj.say();
手动释放对象:
对象 = null;
手动删除对象方法/属性
delete obj.name/obj.say();