powershell - Simple increment/decrement counter -

i make simple counter in powershell. must prompt user whether they'd higher or lower number. starting number must 0, , can't lower 0 or higher 10. if user wants higher number, must increment number 1, if lower decrement 1. must able stop @ desired number. number can set registry value.

i don't know efficient way prompt user. can use read-host cmdlet ask if typed "higher" or "lower", there more efficient way accomplish this?

for example,

$i = 0  while (($i -gt 0) -or ($i -lt 10)){     $j = read-host "the current number $i, higher/lower number, or quit?"      if ($j -eq "higher") {         $i++         write-host "the current number $i"     } elseif ($j -eq "lower") {         $i--         write-host "the current number $i"     } elseif ($j -eq "quit") {         write-host "final number is: $i"         break     } } 

how can this?

you use yes/no prompt window user input.

$a = new-object -comobject wscript.shell $intanswer = $a.popup("do want delete these files?", 0, "delete files", 4) if ($intanswer -eq 6) {     $a.popup("you answered yes.") } else {     $a.popup("you answered no.") } 

if replace '3' in fourth parameter of popup() function yes, no, , cancel buttons in prompt window.

reference: provide yes/no prompt in windows powershell