這在AS3中可能嗎？

Question

類Color：

public class Color { 

    public static const Black:uint = 0x000000; 
    public static const White:uint = 0xffffff; 

    public static const Red:uint = 0xff0000; 
    public static const Blue:uint = 0x0000ff; 
    public static const Green:uint = 0x008000; 

    public var code:uint; 
    public var family:String; 

    public function Color():void {} 

} 

Main.as：

public class Main extends Sprite 
{ 

    public function Main() { 
     var red:Color = new Color(); 
     red.code = Color.Red; 
     trace(red); 
    } 

如何使trace(red)輸出爲0xFF0000

Answer 1

覆蓋toString()爲類。

override public function toString():String { 
    return "Ox"+code.toString(16); 
} 

在一個側面說明：您public function Color()不應該返回void，而不是離開它沒有返回類型。另外，您的red變量Main未初始化。代碼應爲var red:Color=new Color();