请尝试以下操作

$table = new-object System.Collections.Hashtable
for ( $i = 0; $i -lt $list.Length; $i += 2 ) {
  $table.Add($list[$i],$list[$i+1]);
}

Function ConvertTo-Hashtable($list) {
    $h = @{}

    while($list) {
        $head, $next, $list = $list
        $h.$head = $next
    }

    $h
}

ConvertTo-Hashtable ("Key",1,"Key2",2)

如果列表由NameValuePair对象组成，则可以用途：

Function ConvertListOfNVPTo-Hashtable($list) {
    $h = @{}
    $list | ForEach-Object {
        $h[$_.Name] = $_.Value
    }
    return $h
}

$h = @{}  
0..($l.count - 1) | ? {$_ -band 1} | % {$h.Add($l[$_-1],$l[$_])}  

$h = @{}  
0..($l.count - 1) | ? {$_ -band 1} | % {$h.($l[$_-1]) = $l[$_]}  

$h = @{}  
$i = 0  
while ($i -lt $l.count) {$h.Add($l[$i++],$l[$i++])}

不如这样：

$ht = @{}
$key = "";
("Key",5,"Key2",6) | foreach `
{  
    if($key)  
    {
        $ht.$key = $_; 
        $key=""; 
    } else 
    {$key=$_}   
}

function Select-Hashtable {
        [CmdletBinding()]
        param(
            [Parameter(ValueFromPipeline)]
            [PSObject[]]$InputObject,
            [Parameter(Mandatory)]
            [string]$Property
       )
       begin { $hashtable = [Hashtable]::new() }
       process { $InputObject | %{ $hashtable[$_."$Property"] = $_} }
       end { $hashtable }
    }

那么（一个毫无意义的例子）：

$items = Get-ChildItem -Path $path | Select-Hashtable -Property Name
    $documents = $items['Documents']