tSQL CASE来控制执行(tSQL CASE to control execution)

 好的，我在这里做的第一件事就是删除var bmp:Bitmap = new Bitmap 。 你正在创建一个你并不真正需要的引用，所以让我们完全摆脱它。 
 
 现在，在on_img_loaded方法中，您将要为每个加载的图像创建一个新的Bitmap 。 
 
var bmp:Bitmap = e.currentTarget.content;
 
 然后，您需要将事件侦听器直接添加到InteractiveObject而不是舞台。 位图不是InteractiveObjects ，因此我们需要在添加侦听器之前将其包装在其他内容中。 
 
var sprite: Sprite = new Sprite();
sprite.addChild(bmp);
addChild(sprite);
sprite.addEventListener(MouseEvent.CLICK, onClick);
 
 最后，创建一个从images_container删除单击的Bitmap的方法（注意这里我删除了嵌套函数 - 这可以防止参数模糊，通常是很好的做法）。 
 
function onClick(e:MouseEvent):void
{
    images_container.removeChild(e.currentTarget);
}
 
 这是完整的相关代码（未经测试）。 
 
//remove var bmp:Bitmap = new Bitmap from the beginning of the code
function on_img_loaded(e:Event):void {
    e.currentTarget.removeEventListener(Event.COMPLETE, on_img_loaded);
    var bmp:Bitmap = e.currentTarget.content;
    bmp.x = 600, bmp.width = bmp.height = 80;
    bmp.y = images_container.numChildren * (bmp.height + img_margin);
    var sprite: Sprite = new Sprite();
    sprite.addChild(bmp);
    addChild(sprite);
    images_container.addChild(sprite);
    sprite.addEventListener(MouseEvent.CLICK, onClick);
}

function onClick(e:MouseEvent):void
{
    e.currentTarget.removeEventListener(MouseEvent.CLICK, onClick)
    images_container.removeChild(e.currentTarget as DisplayObject);
}
 
 希望这可以帮助！ 

Okay, first thing I did here was remove var bmp:Bitmap = new Bitmap. You're creating a reference you don't really need, so let's get rid of that altogether.
 
Now, in your on_img_loaded method, you're going to want to create a new Bitmap for each loaded image. 
 
var bmp:Bitmap = e.currentTarget.content;
 
Then, you'll need to add the event listener directly to an InteractiveObject rather than the stage. Bitmaps are not InteractiveObjects, so we'll need to wrap it in something else before adding the listener.
 
var sprite: Sprite = new Sprite();
sprite.addChild(bmp);
addChild(sprite);
sprite.addEventListener(MouseEvent.CLICK, onClick);
 
Finally, create a method to remove the clicked Bitmap from images_container (note here I removed the nested function - this prevents argument ambiguity and is generally good practice).
 
function onClick(e:MouseEvent):void
{
    images_container.removeChild(e.currentTarget);
}
 
This is the relevant code in its entirety (untested).
 
//remove var bmp:Bitmap = new Bitmap from the beginning of the code
function on_img_loaded(e:Event):void {
    e.currentTarget.removeEventListener(Event.COMPLETE, on_img_loaded);
    var bmp:Bitmap = e.currentTarget.content;
    bmp.x = 600, bmp.width = bmp.height = 80;
    bmp.y = images_container.numChildren * (bmp.height + img_margin);
    var sprite: Sprite = new Sprite();
    sprite.addChild(bmp);
    addChild(sprite);
    images_container.addChild(sprite);
    sprite.addEventListener(MouseEvent.CLICK, onClick);
}

function onClick(e:MouseEvent):void
{
    e.currentTarget.removeEventListener(MouseEvent.CLICK, onClick)
    images_container.removeChild(e.currentTarget as DisplayObject);
}
 
Hope this helps!