未定义属性事件的访问

Question

我不断收到“访问未定义属性事件” 似乎无法弄清楚，我猜它是小东西......

private function onkeyboardDown(Event:KeyboardEvent):void
    {   
        switch (event.keyCode)
        { 
            case Keyboard.LEFT:
                vx = -5;
            break;
            case Keyboard.RIGHT:
                vx = 5;
            break;
            case Keyboard.UP:
                vy = -5;
            break;
            case Keyboard.DOWN:
                vy = 5;
            break;
        }

    }

Answer 1

Event

！=

event

只需将第一个字符串更改为

private function onkeyboardDown(event:KeyboardEvent):void

Answer 2

您没有声明变量 - 事件。可能需要将 Event 重命名为 event。