$arr=1..100000
$t1=[System.Environment]::TickCount
$A=$arr.ForEach({
    #param([object]$x,[object]$y)
    $x=15
    $y=5
    $_*$x+$y

})
$t2=[System.Environment]::TickCount
$B=foreach($i in $arr){
    $x=15
    $y=5
    $i*$x+$y
}
$t3=[System.Environment]::TickCount
$C=$arr|%{
    param([int]$x,[int]$y)
    $x=15
    $y=5
    $_*$x+$y
}
([System.Environment]::TickCount-$t1).ToString('0 ms')
([System.Environment]::TickCount-$t2).ToString('0 ms')
([System.Environment]::TickCount-$t3).ToString('0 ms')
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