as3 如何遍历类里面所有的属性

var test:HDDD=new HDDD();var xml:XML=describeType(test)

describeType(value:*):XML 

生成描述 ActionScript 对象（命名为方法的参数）的 XML 对象。

我随便写了个类，继承sprite，写了私有和公共方法，事实上遍历得到的只有公共的

<type name="com::HDDD" base="flash.display::Sprite" isDynamic="false" isFinal="false" isStatic="false">  <extendsClass type="flash.display::Sprite"/>  <extendsClass type="flash.display::DisplayObjectContainer"/>  <extendsClass type="flash.display::InteractiveObject"/>  <extendsClass type="flash.display::DisplayObject"/>  <extendsClass type="flash.events::EventDispatcher"/>  <extendsClass type="Object"/>  <implementsInterface type="flash.events::IEventDispatcher"/>  <implementsInterface type="flash.display::IBitmapDrawable"/>  <variable name="ddd" type="int">    <metadata name="__go_to_definition_help">      <arg key="file" value="C:\Users\DELL\Adobe Flash Builder 4\TRR\src\com\HDDD.as"/>      <arg key="pos" value="130"/>    </metadata>  </variable>  <variable name="lidong" type="String">    <metadata name="__go_to_definition_help">      <arg key="file" value="C:\Users\DELL\Adobe Flash Builder 4\TRR\src\com\HDDD.as"/>      <arg key="pos" value="102"/>    </metadata>  </variable>  <accessor name="dropTarget" access="readonly" type="flash.display::DisplayObject" declaredBy="flash.display::Sprite"/>  <accessor name="graphics" access="readonly" type="flash.display::Graphics" declaredBy="flash.display::Sprite"/>  <accessor name="useHandCursor" access="readwrite" type="Boolean" declaredBy="flash.display::Sprite"/>  <accessor name="root" access="readonly" type="flash.display::DisplayObject" declaredBy="flash.display::DisplayObject"/>  <accessor name="stage" access="readonly" type="flash.display::Stage" declaredBy="flash.display::DisplayObject"/>  <accessor name="tabEnabled" access="readwrite" type="Boolean" declaredBy="flash.display::InteractiveObject"/>  <accessor name="mask" access="readwrite" type="flash.display::DisplayObject" declaredBy="flash.display::DisplayObject"/>  <accessor name="width" access="readwrite" type="Number" declaredBy="flash.display::DisplayObject"/>  <accessor name="visible" access="readwrite" type="Boolean" declaredBy="flash.display::DisplayObject"/>  <accessor name="alpha" access="readwrite" type="Number" declaredBy="flash.display::DisplayObject"/>  <accessor name="buttonMode" access="readwrite" type="Boolean" declaredBy="flash.display::Sprite"/>  <accessor name="scaleZ" access="readwrite" type="Number" declaredBy="flash.display::DisplayObject"/>  <accessor name="height" access="readwrite" type="Number" declaredBy="flash.display::DisplayObject"/>  <accessor name="mouseY" access="readonly" type="Number" declaredBy="flash.display::DisplayObject"/>  <accessor name="rotation" access="readwrite" type="Number" declaredBy="flash.display::DisplayObject"/>  <accessor name="mouseX" access="readonly" type="Number" declaredBy="flash.display::DisplayObject"/>  <accessor name="rotationX" access="readwrite" type="Number" declaredBy="flash.display::DisplayObject"/>  <accessor name="tabIndex" access="readwrite" type="int" declaredBy="flash.display::InteractiveObject"/>  <accessor name="rotationY" access="readwrite" type="Number" declaredBy="flash.display::DisplayObject"/>  <accessor name="focusRect" access="readwrite" type="Object" declaredBy="flash.display::InteractiveObject"/>  <accessor name="y" access="readwrite" type="Number" declaredBy="flash.display::DisplayObject"/>  <accessor name="mouseEnabled" access="readwrite" type="Boolean" declaredBy="flash.display::InteractiveObject"/>  <accessor name="cacheAsBitmap" access="readwrite" type="Boolean" declaredBy="flash.display::DisplayObject"/>  <accessor name="x" access="readwrite" type="Number" declaredBy="flash.display::DisplayObject"/>  <accessor name="opaqueBackground" access="readwrite" type="Object" declaredBy="flash.display::DisplayObject"/>  <accessor name="rotationZ" access="readwrite" type="Number" declaredBy="flash.display::DisplayObject"/>  <accessor name="scrollRect" access="readwrite" type="flash.geom::Rectangle" declaredBy="flash.display::DisplayObject"/>  <accessor name="z" access="readwrite" type="Number" declaredBy="flash.display::DisplayObject"/>  <accessor name="filters" access="readwrite" type="Array" declaredBy="flash.display::DisplayObject"/>  <accessor name="blendMode" access="readwrite" type="String" declaredBy="flash.display::DisplayObject"/>  <accessor name="transform" access="readwrite" type="flash.geom::Transform" declaredBy="flash.display::DisplayObject"/>  <accessor name="name" access="readwrite" type="String" declaredBy="flash.display::DisplayObject"/>  <accessor name="scale9Grid" access="readwrite" type="flash.geom::Rectangle" declaredBy="flash.display::DisplayObject"/>  <accessor name="doubleClickEnabled" access="readwrite" type="Boolean" declaredBy="flash.display::InteractiveObject"/>  <accessor name="accessibilityImplementation" access="readwrite" type="flash.accessibility::AccessibilityImplementation" declaredBy="flash.display::InteractiveObject">    <metadata name="Inspectable">      <arg key="environment" value="none"/>    </metadata>  </accessor>  <accessor name="loaderInfo" access="readonly" type="flash.display::LoaderInfo" declaredBy="flash.display::DisplayObject"/>  <accessor name="accessibilityProperties" access="readwrite" type="flash.accessibility::AccessibilityProperties" declaredBy="flash.display::DisplayObject"/>  <accessor name="contextMenu" access="readwrite" type="flash.ui::ContextMenu" declaredBy="flash.display::InteractiveObject"/>  <accessor name="soundTransform" access="readwrite" type="flash.media::SoundTransform" declaredBy="flash.display::Sprite"/>  <accessor name="parent" access="readonly" type="flash.display::DisplayObjectContainer" declaredBy="flash.display::DisplayObject"/>  <accessor name="numChildren" access="readonly" type="int" declaredBy="flash.display::DisplayObjectContainer"/>  <accessor name="blendShader" access="writeonly" type="flash.display::Shader" declaredBy="flash.display::DisplayObject"/>  <accessor name="hitArea" access="readwrite" type="flash.display::Sprite" declaredBy="flash.display::Sprite"/>  <accessor name="scaleX" access="readwrite" type="Number" declaredBy="flash.display::DisplayObject"/>  <accessor name="scaleY" access="readwrite" type="Number" declaredBy="flash.display::DisplayObject"/>  <accessor name="textSnapshot" access="readonly" type="flash.text::TextSnapshot" declaredBy="flash.display::DisplayObjectContainer"/>  <accessor name="tabChildren" access="readwrite" type="Boolean" declaredBy="flash.display::DisplayObjectContainer"/>  <accessor name="mouseChildren" access="readwrite" type="Boolean" declaredBy="flash.display::DisplayObjectContainer"/>  <method name="swapChildren" declaredBy="flash.display::DisplayObjectContainer" returnType="void">    <parameter index="1" type="flash.display::DisplayObject" optional="false"/>    <parameter index="2" type="flash.display::DisplayObject" optional="false"/>  </method>  <method name="stopTouchDrag" declaredBy="flash.display::Sprite" returnType="void">    <parameter index="1" type="int" optional="false"/>    <metadata name="API">      <arg key="" value="667"/>    </metadata>  </method>  <method name="contains" declaredBy="flash.display::DisplayObjectContainer" returnType="Boolean">    <parameter index="1" type="flash.display::DisplayObject" optional="false"/>  </method>  <method name="removeEventListener" declaredBy="flash.events::EventDispatcher" returnType="void">    <parameter index="1" type="String" optional="false"/>    <parameter index="2" type="Function" optional="false"/>    <parameter index="3" type="Boolean" optional="true"/>  </method>  <method name="addEventListener" declaredBy="flash.events::EventDispatcher" returnType="void">    <parameter index="1" type="String" optional="false"/>    <parameter index="2" type="Function" optional="false"/>    <parameter index="3" type="Boolean" optional="true"/>    <parameter index="4" type="int" optional="true"/>    <parameter index="5" type="Boolean" optional="true"/>  </method>  <method name="willTrigger" declaredBy="flash.events::EventDispatcher" returnType="Boolean">    <parameter index="1" type="String" optional="false"/>  </method>  <method name="dispatchEvent" declaredBy="flash.events::EventDispatcher" returnType="Boolean">    <parameter index="1" type="flash.events::Event" optional="false"/>  </method>  <method name="hasEventListener" declaredBy="flash.events::EventDispatcher" returnType="Boolean">    <parameter index="1" type="String" optional="false"/>  </method>  <method name="startDrag" declaredBy="flash.display::Sprite" returnType="void">    <parameter index="1" type="Boolean" optional="true"/>    <parameter index="2" type="flash.geom::Rectangle" optional="true"/>  </method>  <method name="stopDrag" declaredBy="flash.display::Sprite" returnType="void"/>  <method name="toString" declaredBy="flash.events::EventDispatcher" returnType="String"/>  <method name="globalToLocal" declaredBy="flash.display::DisplayObject" returnType="flash.geom::Point">    <parameter index="1" type="flash.geom::Point" optional="false"/>  </method>  <method name="ggg" declaredBy="com::HDDD" returnType="void">    <metadata name="__go_to_definition_help">      <arg key="file" value="C:\Users\DELL\Adobe Flash Builder 4\TRR\src\com\HDDD.as"/>      <arg key="pos" value="367"/>    </metadata>  </method>  <method name="localToGlobal" declaredBy="flash.display::DisplayObject" returnType="flash.geom::Point">    <parameter index="1" type="flash.geom::Point" optional="false"/>  </method>  <method name="getBounds" declaredBy="flash.display::DisplayObject" returnType="flash.geom::Rectangle">    <parameter index="1" type="flash.display::DisplayObject" optional="false"/>  </method>  <method name="getRect" declaredBy="flash.display::DisplayObject" returnType="flash.geom::Rectangle">    <parameter index="1" type="flash.display::DisplayObject" optional="false"/>  </method>  <method name="addChild" declaredBy="flash.display::DisplayObjectContainer" returnType="flash.display::DisplayObje...