错误1120：未定义的属性的访问 [英] Error 1120:Access of undefined property

问题描述

我收到未定义的属性从我已经出演线以下code访问的错误，即使我已经进一步明确了功能的类：

I am receiving an error of access of undefined property from the following code on the line which i've starred, even though i have already defined the function further in the class:

package {

  import flash.display.Stage;
  import flash.events.Event;
  import flash.events.KeyboardEvent;
  public class Key{
    private static var initialized:Boolean = false;
    private static var keysDown:Object = new Object();
    private function initialize(stage:Stage){
      if(!initialized){
        stage.addEventListener(KeyboardEvent.KEY_DOWN, keyPressed);
        stage.addEventListener(KeyboardEvent.KEY_UP, keyReleased);
      **stage.addEventListener(Event.DEACTIVATE, clearKeys);**
        initialized = true;
      }
    }
    public static function isDown(keyCode:uint):Boolean {
      return Boolean(keyCode in keysDown);
    }
    Private static function keyPressed(event:KeyboardEvent):void {
      keysDown[event.keyCode] = true;
    }
    private static function keyReleased(event:KeyboardEvent):void{
      if(event.keyCode in keysDown){
        delete keysDown[event.keyCode];
      }
    }
    Private static function clearkeys(event:Event):void{
      keysDown = new Object():
    }
  }
}

编辑：新的错误雨后春笋般冒出来后，我有固定的上限错误（谢谢你杰森）。 谁能帮我这个？

New error popping up after I have fixed the caps error (Thank you Jason). Can anyone help me with this?

推荐答案

私人必须小写是访问修饰符关键字私人。

Private must be lowercase to be the access modifier keyword private.

如：

private static var initialized:Boolean = false;

由于大写私人编译器假定您要引用命名空间私人，如：

As upper case Private the compiler assumes you are referencing namespace "Private", such as:

package
{
    import flash.utils.flash_proxy;
    import mx.core.mx_internal;

    use namespace arcane;

    public dynamic class X
    {
        flash_proxy var prop1:Boolean;

        mx_internal var prop2:Boolean;

        arcane var prop3:Boolean;
    }
}

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