js对象

来源：互联网发布：java域对象是什么意思编辑：程序博客网时间：2024/06/01 04:00

对象里var的是私有的 this.的是公有的

this.introduction=function()
{
alert("My name is" + this.name+"/n" +"age is" +

this.age);
}

}

var user1=new User();
user1.setName("qqq");
user1.setAge("11");
user1.introduction();
alert("My name is" + user1.name+"/n" +"age is" + user1.age);

</script>
</html>

var Person={};
Person.name="Tom";
Person["age"]=20;
Person.introduction=function()
{
alert("My name is "+this.name+",my age is

"+this.age);
};

Person.introduction();//My name is Tom age is 20
for(var field in Person)
{
alert("field name:" + field + ";value:" +Person

[field]);
delete Person.name;
Person.introduction();
alert(name in Person);//false
}

</script>
</html>

<html>
<script>
function hello()
{
alert("Hello!");
}
hello.name="Tom";//添加属性
alert(hello["name"]);
delete hello.name;//删除属性
alert(hello.name);
//赋值给变量
var hello1=function()
{
alert(hello1);
};
hello1();
//作为数组元素
function show1(x)
{
alert(x);
}
var arr=[show1];
arr[0](5);
//作为函数的参数
function callFunc(func)
{
func();
}
callFunc(function()
{
alert("Inner function.");
});
function show()
{
return function(n){alert("number is "+n)};
}
show()(10);
alert(arr[0]);
</script>
</html>