最顶层的类是DisplayObject，Flex 将它添加到FlashPlayer的Stage对象或通用显示列表。

The top-level class is DisplayObject, which Flex adds to the Stage object, or the universal display list, of Flash Player.

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最顶层的类是DisplayObject，Flex 将它添加到FlashPlayer的Stage对象或通用显示列表。

The top-level class is DisplayObject, which Flex adds to the Stage object, or the universal display list, of Flash Player.

youdao