Question

在我的文件系统上给出以下say-hello.ps1文件：

function SayHello()
{
    return "Hello World!"
}

在命令行上调用（它最终将作为Windows计划任务运行）：

powershell -ExecutionPolicy unrestricted -command "& { c:\say-hello.ps1; SayHello }"

为什么我会得到以下结果？

SayHello : The term 'SayHello' is not recognized as the name of a cmdlet,
function, script file, or operable program. Check the spelling of the name, or
if a path was included, verify that the path is correct and try again.
At line:1 char:33
+ & { c:\say-hello.ps1; SayHello }
+                       ~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (SayHello:String) [], CommandNot
   FoundException
    + FullyQualifiedErrorId : CommandNotFoundException

Answer 1

脚本文件c:\say-hello.ps1的范围在脚本终止时结束。如果您希望其内容在当前范围内运行，您可以点源文件（请注意PS1之前的.） - 用curles {...}括起来的脚本块：

powershell -ExecutionPolicy unrestricted -command "& { . c:\say-hello.ps1; SayHello }"

从命令行调用PowerShell函数

1 个答案: