PowerShellスクリプトからC#コードを使う例

say.cs

using System;

public static class Speaker
{
    public static void Say(string word)
    {
		char[] trimChars = {'/'};
		word = word.TrimEnd(trimChars);
        Console.WriteLine(word + "!");
    }
}

useCsharp.ps1

param($word)

$assemblies = (
 "System"
)

$src = Get-Content "say.cs" | Out-String

Add-Type  -TypeDefinition $src -Language CSharp -ReferencedAssemblies $assemblies
[Speaker]::Say($word)