//创建对象

var myData = new Object();

myData.name = "admin";

myData.password = "admin";

document.writeln("hello" + myData.name + ".");

document.writeln("Today is" + myData.password + ".")

//对象字面量

var myData = {

name: "admin",

password: "admin"

};

document.writeln("hello" + myData.name + ".");

document.writeln("Today is" + myData.password + ".")

//对象添加方法

var myData = {

name: "admin",

password: "admin",

admin: function () {

document.writeln("hello" + myData.name + ".");

document.writeln("Today is" + myData.password + ".")

}

};

myData.admin()

枚举对象属性 for...in语句

delete 能直接删除对象的方法  delete myData.name;