影片剪辑动态变量的属性？
我偶尔会使用 flash.display.MovieClip 类的这个有用的属性，
例如：
var mc:MovieClip = new MovieClip();
mc["myVariable"] = myAnotherMovieClip;
mc["myVariable2"] = true;
mc["myVariable3"] = new Array(0,0,1);
嗯，我想了解有关 movieclip 的这个“功能”的更多信息。我从一位同事那里了解到这一点，但并不真正知道这在 AS3 中被称为什么。
如果你们能提供帮助，我会非常高兴。
I do occasionally use this useful property of the flash.display.MovieClip class
for eg:
var mc:MovieClip = new MovieClip();
mc["myVariable"] = myAnotherMovieClip;
mc["myVariable2"] = true;
mc["myVariable3"] = new Array(0,0,1);
Well, I'd like to learn more about this 'feature' of movieclip. As I got to know this from a colleague and do not really know as to what this is called in AS3.
I'd be really glad if you people could help.
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在AS3中，MovieClip类是一个动态类。更多信息请参见：http://help.adobe.com /en_US/FlashPlatform/reference/actionscript/3/statements.html#dynamic
In AS3, the MovieClip class is a dynamic class. More informations here: http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/statements.html#dynamic
影片剪辑类是一个动态对象，它可以保存不同类型的变量（属性）。方括号是动态设置和访问对象属性的一种方式。
trace(mc["myVariable2"])将输出true；trace(mc.myVariable2)也会输出true。请注意，
mc["myVariable"] = myAnotherMovieClip将创建一个属性来存储对 myAnotherMovieClip 的引用。The movie clip class is a dynamic object and it can hold different types of variables (properties). Square brackets are a way of dynamically setting and accessing the properties of an object.
trace(mc["myVariable2"])would outputtrue;trace(mc.myVariable2)would outputtrueas well.Note that
mc["myVariable"] = myAnotherMovieClipwould create a property that stores the reference to myAnotherMovieClip.