c# - 将 powershell 变量值返回给 c# 应用程序

Question

我正在从 c# 运行 powershell 脚本。

string scriptPath = "/script/myscript.ps1";
Runspace runspace = RunspaceFactory.CreateRunspace();
runspace.Open();
Pipeline pipeline = runspace.CreatePipeline();
pipeline.Commands.AddScript(scriptPath);
Collection<PSObject> results = pipeline.Invoke(); 

例如，如果 下面的myscript.ps1文件；

$test=4
$test++
$test

test执行脚本后如何获取变量值。我需要为我的 c# 程序获取该值。

Answer 1

我知道我迟到了，但是在您的脚本中，您需要global:在要在 Powershell 脚本中返回的变量前面添加，例如：

$global:test = 4

在 Powershell 脚本中。在 C# 中打开运行空间后，调用策略更改器，设置管道，您可以

var result = runspace.SessionStateProxy.PSVariable.GetValue("test");

Answer 2

string variable_to_return_from_ps_script = "test"; 

// create Powershell runspace
Runspace runspace = RunspaceFactory.CreateRunspace();
runspace.Open();

//
// here you write the code to invoke the PS script, pipeline, pass parameters etc...
// just like the code you already have
//

// and here's how you retrieve a variable test from PS
var out_var = runspace.SessionStateProxy.PSVariable.GetValue(variable_to_return_from_ps_script);
Console.WriteLine("Variable ${0} value is: ", variable_to_return_from_ps_script);
Console.WriteLine(out_var.ToString());