ActionScript 学习: 原来Flash这么用都可以 啊

var mc:MovieClip;
var arr:Array;
var bool:Boolean;
var num3:Number;
var obj:Object;
var str:String;
_root.createTextField("results",2,100,100,300,300);
with(results){
text = "色色学习ActionScript -- vb2005xu.iteye.com";
text += "\ntype MovieClip :"+(typeof MovieClip(str)); // 返回 null
text += "\ntype object :"+(typeof Object(str)); // 返回 object
text += "\ntype Array :"+(typeof Array(num3)); // 返回 object
text += "\ntype Boolean :"+(typeof Boolean(mc)); // 返回 boolean
text += "\ntype String :"+(typeof String(mc)); // 返回 string
text += "\ntype Number :"+(typeof Number(obj)); // 返回 number
text += "\ntype Function :"+(typeof Function(mc)); // 返回 object
text += "\ntype null :"+(typeof null(arr)); // 返回 undefined
text += "\ntype undefined :"+(typeof undefined(obj)); // 返回 undefined
}