Flash、ActionScript 3：将变量定义为来自其创建者的变量，而无需不断使用 Creator.var

发布于 2024-09-07 21:20:35 字数 568 浏览 3 评论 0原文

我正在尝试将我的代码拆分为类。但有一个问题真正困扰着我。当我为函数创建一个类时，我给出了它自己的舞台。像这样

dragf:Dragfunctions = new Dragfunctions(this)

，在类中我使用它，

var stage:Object;

    public function Dragfunctions(stage:Object) 
    {
            this.stage = stage;
    }

正如你所看到的，我现在可以使用 stage.var1 = "hi" 调用阶段的变量但是当我需要多次调整该变量时，它会变得相当混乱......

有一种方法可以告诉我，当我调用 var1 时，他知道我的意思是 stage.var1 而无需调用 stage。它：

var var1 = stage.var1

然后使用

stage.var1 = var1

，但这也很不方便，有更好的方法吗？

原文

I am trying to split up my code in classes. but there is a issue what really bothers me. when i create a class for functions i am giving its own stage. like this

dragf:Dragfunctions = new Dragfunctions(this)

and in the class i use this

var stage:Object;

    public function Dragfunctions(stage:Object) 
    {
            this.stage = stage;
    }

as you can see i can now call a variable of the stage using stage.var1 = "hi"
but when i need to ajust that varable many times it gets a quite messy...

there is a way to tell that when i call var1 he knows i mean stage.var1 without need to call stage. its:

var var1 = stage.var1

and then using

stage.var1 = var1

but that is quite unhandy too is there a better way?

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揪着可爱 2024-09-14 21:20:35

是的，使用 getter 和 setter（它们提供类似字段的语义，但允许您在使用赋值时执行自定义逻辑）：

function set var1(val:SomeType):void
{
    stage.var1=val;
}
function get var1():SomeType
{
    return stage.var1;
}
function doStuff():void
{
    var1=new SomeType();  //this results in call to "set" method
    var st:SomeType=var1; //this results in call to "get" method
}

Yes, use getters and setters (which provide field-like semantics, but allow you to execute custom logic when assignment is used):

function set var1(val:SomeType):void
{
    stage.var1=val;
}
function get var1():SomeType
{
    return stage.var1;
}
function doStuff():void
{
    var1=new SomeType();  //this results in call to "set" method
    var st:SomeType=var1; //this results in call to "get" method
}

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