javascript中对象的介绍（附代码）

var message = "hello world!";var x=message.length;

var message="hello world!";var x=message.toUpperCase();

student=new Object();
student.name="Sine";
student.age=20;
student.school="XX University";

student=new Object();student={
    name:"Sine",
    age:20,
    school:"XX University"};

function register(name,age,school){
    this.name=name;
    this.age=age;
    this.school=school;
    }
    student = new register("Sine",20,"XX University");

function register(name,age,school){
    this.name=name;
    this.age=age;
    this.school=school;
    function ChangeName(name)
    {
        this.name=name;
    }}
student=new register("Sine",20,"XX University");
student.ChangeName("Cosine");