如何为变量设置速记别名? [英] How can I set a shorthand alias for a variable?

问题描述

我正在使用一个设置 $Global:LastResult 的脚本，我如何设置别名，比如 last 来访问这个变量

I am using a script that sets $Global:LastResult, how can I set an alias, say, last to access this variable

推荐答案

你不能为变量定义别名(好吧，技术上你可以，只要变量不是 $null，但是您的别名将具有赋值时变量的值).

You can't define an alias for a variable (well, technically you can, as long as the variable isn't $null, but then your alias would have the value of the variable at the time of the assignment).

您可以做的是定义一个函数，该函数返回 $global:LastResult 的值，然后是该函数的别名:

What you can do is define a function that returns the value of $global:LastResult and then an alias for that function:

function Get-LastResult { $global:LastResult }
New-Alias -Name last -Value Get-LastResult

然而，我没有看到这样的方法比直接使用变量 $global:LastResult 的优势.

However, I fail to see the advantage of an approach like this over directly using the variable $global:LastResult.

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