powershell - How to enable OGV in a powershell function

Question

How to enable Out-GridView in a function.

I mean,

 "Hello" | Out-GridView

Works.

But if I have a simple function like this

function Count ([int]$times)
{
    for ($i=1; $i -le $times;$i++)
    {
        Write-Host $i
    }
}

Why calling Count 5 doest not support a pipe to Out-GridView?

Answer 1

您遇到的问题是Write-Host根本不输出到管道。它直接写入屏幕。替换Write-Host为Write-Output它应该可以正常工作。

顺便说一句，Write-Output是默认设置，因此您可以使用：

function Count ([int]$times)
{
    for ($i=1; $i -le $times;$i++)
    {
        $i
    }
}

或者更简单地说：

function Count([int]$times) 
{
    1..$times
}