如何在PowerShell中将数组对象转换为字符串？

$array = @("apple", "banana", "cherry")
$string = $array -join ","
Write-Host $string

$array = @("apple", "banana", "cherry")
$string = $array | Out-String
Write-Host $string

apple
banana
cherry

$array = @("apple", "banana", "cherry")
$string = ""
foreach ($item in $array) {
    $string += $item + ","
}
$string = $string.TrimEnd(",")
Write-Host $string

$array = @("apple", "banana", "cherry")
$stringBuilder = New-Object System.Text.StringBuilder
foreach ($item in $array) {
    [void]$stringBuilder.Append($item + ",")
}
$string = $stringBuilder.ToString().TrimEnd(",")
Write-Host $string