如何从C#窗口调用Powershell脚本并传递参数？

Question

我想调用 powershell 脚本，从 c# windows form 中接受一些参数。

例如:-我有一个接受2个参数的powershell脚本，我有一个windows窗体，里面有两个文本框和一个提交按钮，我想把这两个文本框的参数传递给powershell脚本。当我按下提交按钮时，它将调用 powershell 脚本，并在 powershell 终端上运行它，同时在 powershell 终端上显示结果。

Answer 1

这里是powershell脚本的工作示例，它给你提供ASCII码的char。假设你有richTextbox1来显示脚本的输出，你有button1来触发它的运行--这里是代码。

        public void RunPowershell()
        {
            var ps1File = @"C:\asc.ps1";

            ProcessStartInfo startInfo = new ProcessStartInfo();
            startInfo.FileName = @"powershell.exe";
            startInfo.Arguments = $@"& '{ps1File}' f";
            startInfo.RedirectStandardOutput = true;
            startInfo.RedirectStandardError = true;
            startInfo.UseShellExecute = false;
            startInfo.CreateNoWindow = true;
            Process process = new Process();
            process.StartInfo = startInfo;
            process.Start();

            string output = process.StandardOutput.ReadToEnd();
            string errors = process.StandardError.ReadToEnd();

            richTextBox1.Text = $"Output: {output}{Environment.NewLine}Errors = {errors}";
        }

        private void button1_Click(object sender, EventArgs e)
        {
            RunPowershell();
        }

这将给出char'f'的ascii码。

下面是例子中的PS脚本。

function Syntax {
    Write-Host
    Write-Host "Asc.ps1,  Version 1.00"
    Write-Host "Returns the numeric ASCII value for the specified character"
    Write-Host
    Write-Host "Usage:   " -NoNewline
    Write-Host "ASC.PS1  char" -ForegroundColor White
    Write-Host
    Write-Host "Returns: Numeric ASCII value of " -NoNewline
    Write-Host "char" -ForegroundColor White
    Write-Host
    Write-Host "Notes:   The ASCII value is written to Standard Output (usually the screen)"
    Write-Host "         as well as returned as `"errorlevel`""
    Write-Host "         If more than 1 character is passed on the command line, only the first"
    Write-Host "         character will be used, the remainder of the string will be ignored."
    Write-Host "         The `"errorlevel`" will equal the ASCII value, or 0 if no parameter"
    Write-Host "         was passed, or -1 in case of errors or for this help"
    Write-Host
    Write-Host "Credits: Code to pass exit code as `"errorlevel`" to the calling batch file"
    Write-Host "         or PowerShell script by Serge van den Oever:"
    Write-Host "         weblogs.asp.net/soever/returning-an-exit-code-from-a-powershell-script" -ForegroundColor DarkGray
    Write-Host
    Write-Host "Written by Rob van der Woude"
    Write-Host "http://www.robvanderwoude.com"

    $Host.SetShouldExit( -1 )
    Exit
}

if ( $args.Length -eq 1 ) {
    if ( $args[0] -eq "/?" ) {
        Syntax
    } else {
        $input = $args[0]
    }
} else {
    Syntax
}

if ( $input -eq "" ) { $input = [string][char]0 }

[char]$char = $input[0]

Write-Host ([byte]$char) -NoNewline

# Pass exit code to calling batch or PowerShell script, by Serge van den Oever
# https://weblogs.asp.net/soever/returning-an-exit-code-from-a-powershell-script
$Host.SetShouldExit( [byte]$char )
Exit

把它保存到磁盘上 C，叫它 asc.ps1 --> 你就有了工作的例子。

Answer 2

只要启动 powershell.exe，参数为

要启动任何外部应用程序，你可能要检查如何工作的过程。

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