PowerShell 将字符串转换为变量

Question

In PowerShell I'm working on a script and can't solve this:

$GROUPA = 'A', 'B', 'C', 'D'
$GROUPB = 'E', 'F', 'G', 'H'

$SELECT = 'GROUPA'

write-output $$SELECT (or something)

I have a view arrays, and than a script thats output one of the array names. And I want to output that array, but can't find how to do that with powershell.

Answer 1

Your $SELECT is just a string , instead you probably want to assign it to the $GROUPA variable:

$SELECT = $GROUPA    
write-output $SELECT

Or, if you wan't a to resolve a variable using a string, use the Get-Variable cmdlet:

$SELECT = Get-Variable 'GROUPA'

Answer 2

This may help you (even if it's old topic)

$A=1
$B=2
$C=3
$D=4
$E=11
$F=12
$G=13
$H=14
$GROUPA = 'A', 'B', 'C', 'D'
$GROUPB = 'E', 'F', 'G', 'H'
$SELECT=$GROUPB
$myval1 = (Get-Variable $SELECT[0]).Value
$myval2 = (Get-Variable $SELECT[1]).Value
$myval3 = (Get-Variable $SELECT[2]).Value
$myval4 = (Get-Variable $SELECT[3]).Value