我有一个名为getSources（）的函数; 在这个函数中，我想轻松地为常量指定数字。 我认为这样可行：
const A = 1;
ncst B = 2;
ncst C = 3;
nstst D = 4;
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我可以这样做：
$ someValue = A;
但它不起作用。 我错过了什么？ 我不希望在这个函数的范围之外使用这些变量。
I have a function called getSources(); In this function I want to easily assign numbers to constants. I figured this would work:
const A = 1;
const B = 2;
const C = 3;
const D = 4;
And I could just do this:
$someValue = A;
But it doesn't work. What am I missing? I don't want these variables to be used outside of the scope of this function.
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