启动时使用 Powershell 脚本的参数 [英] Arguments with Powershell Scripts on Launch
问题描述
就像在 C 和其他语言中一样,您可以在实际执行脚本时赋予 script/.exe 参数.例如:
Like in C and other languages, you can give to the script/.exe arguments when you physically execute the script. For example:
myScript.exe Hello 10 P
Hello, 10 和 P 被传递给程序本身的某个变量.
Whereby Hello, 10 and P are passed to some variable in the program itself.
这在 Powershell 中可行吗?如果是这样,你如何将这些参数赋予给定的 $variable
Is this possible in Powershell? and if so, how do you give those args to a given $variable
谢谢!
推荐答案
用这样的参数块定义你的脚本:
Define your script with a param block like so:
-- Start of script foo.ps1 --
param($msg, $num, $char)
"You passed in $msg, $num and $char"
您也可以进一步输入限定参数,例如:
You can further type qualify parameters as well e.g:
-- Start of script foo2.ps1 --
param([string]$msg, [int]$num, [char]$char)
"You passed in $msg, $num and $char"
您还可以指定默认值和必需值,例如:
You can also specify default values and required values e.g.:
-- Start of script foo3.ps1 --
param([string]$msg=$(throw "Msg param is required"), [int]$num, [char]$char="P")
"You passed in $msg, $num and $char"
您可以使用高级功能(指定属性以验证参数等)变得更有趣.但这应该能让你继续前进.
You can get even fancier with advanced functions (specify attributes to validate parameters, etc). But this should get you going.
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