1
이것은 매우 간단해야합니다. 함수에서 해시 테이블 배열을 반환해야합니다. 이것은 하나 이상의 해시 테이블이있을 때 작동하지만 하나만있는 경우 결과는 배열이 아닙니다. 결과가 배열인지 아닌지 테스트하고 싶습니다.PowerShell에서 단일 요소가있는 배열 반환
function GetArrayWith1Hashtable()
{
$array = @()
$hashtable = @{}
$hashtable["a"] = "a"
$hashtable["b"] = "b"
$hashtable["c"] = "c"
$array += $hashtable
Write-Host "GetArrayWith1Hashtable array.Length =" $array.Length
Write-Host "GetArrayWith1Hashtable array.Count" $array.Count
Write-Host "GetArrayWith1Hashtable array[0].Keys" $array[0].Keys
$array
}
function GetArrayWith2Hashtables()
{
$array = @()
$hashtable = @{}
$hashtable["a"] = "a"
$hashtable["b"] = "b"
$hashtable["c"] = "c"
$array += $hashtable
$hashtable2 = @{}
$hashtable2["d"] = "d"
$hashtable2["e"] = "e"
$hashtable2["f"] = "f"
$array += $hashtable2
Write-Host "GetArrayWith2Hashtables array.Length = " $array.Length
Write-Host "GetArrayWith2Hashtables array.Count = " $array.Count
Write-Host "GetArrayWith2Hashtables array[0].Keys =" $array[0].Keys
Write-Host "GetArrayWith2Hashtables array.Count = "$array[1].Keys
$array
}
$result1 = GetArrayWith1Hashtable
# $result1.Length - not available
Write-Host "Result of GetArrayWith1Hashtable result1.Count = " $result1.Count # Count = 2 (would expect this to be 1)
# $result1[0] not available - not an array
$result2 = GetArrayWith2Hashtables
Write-Host "Result of GetArrayWith2Hashtables result2.Length = " $result2.Length # Length = 2
Write-Host "Result of GetArrayWith2Hashtables result2.Count = " $result2.Count # Count = 2
Write-Host "Result of GetArrayWith2Hashtables result2[0].Keys = " $result2[0].Keys # Keys = c a b
Write-Host "Result of GetArrayWith2Hashtables result2[1].Keys = " $result2[1].Keys # Keys = d e f
<#
FULL OUTPUT:
GetArrayWith1Hashtable array.Length = 1
GetArrayWith1Hashtable array.Count 1
GetArrayWith1Hashtable array[0].Keys c a b
Result of GetArrayWith1Hashtable result1.Count = 2
GetArrayWith2Hashtables array.Length = 2
GetArrayWith2Hashtables array.Count = 2
GetArrayWith2Hashtables array[0].Keys = c a b
GetArrayWith2Hashtables array.Count = d e f
Result of GetArrayWith2Hashtables result2.Length = 2
Result of GetArrayWith2Hashtables result2.Count = 2
Result of GetArrayWith2Hashtables result2[0].Keys = c a b
Result of GetArrayWith2Hashtables result2[1].Keys = d e f
#>