powershell - 如果您知道为什么 : is assigned but never，如何使警告静音甚至更好

Question

$global:ProjectName = $null

function RunFirst(){
  RunSecund
  Write-Host $global:ProjectName
}

function RunSecund(){
    $global:ProjectName = "a name"
}

在 RunSecund 我得到:

The variable 'ProjectName' is assigned but never used. PSScriptAnalyzer(PSUseDeclaredVarsMoreThanAssignments)

Answer 1

很简单，不要使用全局变量!

但是，如果必须，您可以使用 SuppressMessageAttribute 抑制 PSSA 警告。 :

function RunSecund(){
    [Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUserDeclaredVarsMoreThanAssignments', '', Scope='Function')]
    $global:ProjectName = "a name"
}