仅使用脚本或脚本块怎么办?

What about just using a script or script blocks?

powershell {
   Add-Type foo.dll
   [Foo]::DoSomething();
}

应该工作.

如果您需要交互性并且需要随意尝试多个命令，则可以使用

If you need interactivity and need to try multiple commands at will, you could use

powershell -noexit { Add-Type foo.dll }

在这种情况下，至少更改提示颜色可能很有用，这样您就知道您是在测试子外壳程序中还是在父子外壳程序中:

In that case it can be useful to at least change the prompt color so you know whether you're in the test sub-shell or in the parent one:

function Test-DLL {
  powershell -noexit {
    function prompt {
      Write-Host -n -fore yellow "Test $PWD>"
      ' '
    }

    Add-Type foo.dll
  }
}

我也倾向于通过以下方式定义一个小函数:

I tend to define a small function in the following way too:

"function $([char]4) { exit }" | Invoke-Expression

这使我可以使用 Ctrl + D ， Enter (类似于Unix shell的一半)关闭PowerShell.

which allows me to close PowerShell with Ctrl+D, Enter (half an analog to Unix shells).