类是一个静态类,它包括一个静态方法copy,我在http://livedocs.macromedia.com找到了它的解释:Static class with methods for performing copies of in memory objects including nested property arrays. This class is for internal use only.它的功能是对内存中对象进行深度复制,在内存中重新创建一个对象实例,而不仅仅只是引用。这里可以看一个例子:
var obj = new Object (); obj.date = new Date (); obj.data = [42, "foo", {nested:"LeeFJ"}]; //进行深度拷贝 var objCopy:Object = mx.utils.ObjectCopy.copy (obj); trace(obj == objCopy); trace("Test: " + objCopy.data[2].nested);输出: