ReferenceError：错误＃1069：属性box_mc_0 [英] ReferenceError: Error #1069: Property box_mc_0

问题描述

我试图用循环来隐藏舞台上的影片剪辑，但是当我发布它的时候，我得到了下面的错误（这只是一个概念的例子。）

  var q; 
 for（q = 0; q <= 3; q ++）{
 stage [box_mc_+ q] .visible = false; 
 
  

错误讯息：

$ b

ReferenceError：Error＃1069：属性 box_mc_0 $ b flash.display.Stage ，并且没有默认值。在
test_fla :: MainTimeline / frame1（）

< a href =https://i.stack.imgur.com/wq1nu.jpg =nofollow noreferrer>

任何帮助，将不胜感激。

解决方案

你只需要使用 this code>关键字而不是阶段变量：



  var q; 
 for（q = 1; q <= 3; q ++）{
 this [box_mc_+ q] .visible = false; 
 
 
 
 $ b $ p 
 $ b 
简单的原因是对象是 MainTimeline 对象， this 关键字在该上下文中引用的对象，它们不是 stage 。
 
如果您有兴趣了解更多关于差异的细节，您可以找到有用的信息这里。
 
I'm trying to hide movie clips from the stage using a loop, but I'm getting the following error when I publish it (this is just an example of the concept.)
var q;
for (q = 0; q <= 3; q++) {
   stage["box_mc_" + q].visible = false;
}
The Error message:

  
ReferenceError: Error #1069: Property box_mc_0 not found on
  flash.display.Stage and there is no default value. at
  test_fla::MainTimeline/frame1()


Any help would be appreciated.
解决方案
You simply need to use the this keyword instead of the stage variable:
var q;
for (q = 1; q <= 3; q++) {
   this["box_mc_" + q].visible = false;
}
The simple reason being is that the objects are the children of a MainTimeline object, to which the this keyword would refer to in that context, and they are not the direct children of the stage.

If you're interested for more details on the difference, you may find useful information here.

                        
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