苍蝇也是鸟

摘要： import flash.events.MouseEvent;a.b.addEventListener(MouseEvent.CLICK,bclickHandler);function bclickHandler(e:MouseEvent):void{ trace("bclick"); a.addEventListener(MouseEvent.CLICK,aclickHandler);}function aclickHandler(e:MouseEvent):void{ trace("aclick");} 第一次点击B方块，会发现输出 bclick a 阅读全文