如何将函数输出传递给powershell中的另一个函数？

Question

First time to use the PowerShell.

I try to find a way to use the function output as the input of another function.

For an example,

Function TK
{
    param ([int]$OTK)

    $TK = $OTK * 2

    write-host "TK $TK"
}

Function MAT
{
    param ([int]$OMAT)

    $MAT = $OMAT * $TK /5

    write-host "MAT $MAT"
}

The idea is to create a script or a module to call different functions independently. It starts with the first function and pass the ouput to another function as the input. The functions can either run independently or run sequentially.

Any Example?

Answer 1

All output from functions is passed down the pipe. That is all output . You are using write-host which is just for displaying on the console itself. Use Write-Output or just write the command out with out it. I also suggest you have a look at about_functions .

Not exactly sure what the question is but the title as asked I would do something like this.

Function TK
{
    param ([int]$OTK)
    $OTK * 2
}

Function MAT
{
    param ([int]$OMAT, $TK)
    $OMAT * $TK /5
}

The line $OMAT * $TK /5 could also be read as Write-Output $OMAT * $TK /5 . They are functionally the same.

I added another parameter for the MAT function for the second value $TK . You can declare variables using the global keyword but this is clear on concise. This would be a sample function call which outputs the result 10

MAT 5 (TK 5)

The expression (TK 5) is evaluated then sent as the second value for the function MAT . You can also use a variable as a middle man but unless you need to use the function calls output more than once this would be redundant.

$result = TK 5
MAT 5 $result

You can also call functions inside one another just like any cmdlet. It is important though to declare the function before you call it.

Function MAT
{
    param ([int]$OMAT)
    $OMAT * TK /5
}

Note the "TK" above code will call the function TK .