copy class in flex(深度拷贝)

 public static function cloneObject(source:Object) :*
        {
         var typeName:String = getQualifiedClassName(source);
       
         var packageName:String = typeName ;
         var type:Class = Class(getDefinitionByName(typeName));
   
         registerClassAlias(packageName, type);
        
         var copier:ByteArray = new ByteArray();
         copier.writeObject(source);
         copier.position = 0;
         return copier.readObject();
  }

但是如果你的类里有数组,,而且数组里包含的是别的类,那也要把类registerClassAlias , 不然在拷贝的时候会把数组里的每一项转成object,而不是class  .