像文本一樣訪問變量？

Question

假設我有一個變量Var123;

var x = "Var"; 

var VariableMixLOL = x + "123"; 
//so VariableMixLOL should be equal to Var123, ex. Var123 = "Abc", VariableMixLOL should be "Abc" too 

我該怎麼做？順便說一句我使用AS3

PS：新增的標籤JS太多，因爲我認爲這是同樣的事情

Answer 1

一種選擇是使用eval()

var x = "Var"; 
var Var123 = "lalaala"; 
var VariableMixLOL = eval(x + "123"); 

另一種選擇和更好的是模擬這樣的東西在JavascriptObject中。

var x = "variable"; 
var variables = { "variable123" : "laalala"}; //OR variables = {}; variables["variable123"] = "laalala"; 

var VariableMixLOL = variables[ x + "123"]; 

Answer 2

如果您合併存儲的對象，則可以使用變量名稱作爲字符串。

例如：

var x = "Var"; 
var compoundVar = x + "123"; 
var obj : Object = {}; 
obj[compoundVar] = 7; 

//Now you can call the variable like this 
trace(obj.Var123); //7