AS3，從字符串到數據類型x的動態轉換

Question

是否有動態轉換的方法？

這是默認的方式轉換成字符串：

VAR toVal：* = INT（ 「5」）;
var toVal：* = Boolean（「true」）;

但我wan't做到這一點：

變種類型：字符串= 「INT」;
var toVal：* = type（「5」）; // < < < < <我怎麼能做到這一點

Answer 1

嘗試之一：

var type:Class = int; 
// or 
var type:Class = flash.utils.getDefinitionByName("int") as Class; 

var toVal:* = type("5"); 

示例程序：

var test:* = "5"; 

var type:Class = flash.utils.getDefinitionByName("int") as Class; 

var toVal:* = type("5"); 

if(test is String) { 
    trace("Test is a string"); // traces 
} 

if(test is int) { 
    trace("Test is an int"); // ignored 
} 

if(toVal is String) { 
    trace("toVal is a string"); // ignored 
} 

if(toVal is int) { 
    trace("toVal is an int"); // traces 
}