爲什麼我的數組是空後送入功能

Question

我想幾個parameters送入function，其中之一是array。 調用之前function數組是幾個項目，通過在函數內部調試器看時array是empty\null：

$arr = New-Object System.Collections.ArrayList 
$arr.Add("test1") 
GetProcessOutput -exeFile "c:\file.exe" -args $arr 

function GetProcessOutput($exeFile, $args) 
{ 
    # here my $args is empty -> children could not be evaluated 
} 

Answer 1

$args是automatic variable，這意味着你是從使用args名用戶防止定義的變量。

使用任何其他名稱，它會工作：

function GetProcessOutput([string]$exeFile,[array]$arguments) 
{ 
    # $arguments will work just fine 
} 

---

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