在PowerShell中跨多个函数将结果添加到数组的最佳方法是什么？ [英] Best way to add results to an array across multiple functions in PowerShell?

问题描述

我想对一些基础设施执行一系列检查，如果检查失败，则将其添加到列表中。在工作流程结束时，编写结果列表。伪码：

Function CheckSomething
{
    # Perform a check here. If check failed, add to the results list.
}

Function CheckSomethingElse
{
    # Perform another check. If check failed, add to the results list.
}

Function ShowResults
{
    $results;
}

CheckSomething;
CheckSomethingElse;
ShowResults;

我希望避免使用全局变量。你会怎么解决这个问题？使用collections.arraylist？

更新

我尝试了@mjolinor的以下建议

Function CheckSomething
{
   # Perform a check here. If check failed, add to the results list
   $check = $true
   if ($check -eq $true) {$results[CheckSomething] = 'Pass'}
   else {$results[CheckSomething] = 'Fail}'
}

Function CheckSomethingElse
{
    # Perform another check. If check failed, add to the results list.
    $check = $false
    if ($check -eq $true) {$results[CheckSomethingElse] = 'Pass'}
    else {$results[CheckSomethingElse] = 'Fail}'

}

Function ShowResults
{
    $results;
}

$results = @{}
CheckSomething
CheckSomethingElse
ShowResults

我得到：

Missing or invalid array index expression.
At C:UsersmoominDocumentserrorsTest.ps1:5 char:36
+    if ($check -eq $true) {$results[ <<<< CheckSomething] = 'Pass'}
    + CategoryInfo          : ParserError: ([:String) [], ParseException
    + FullyQualifiedErrorId : MissingArrayIndexExpression

这是here的后续问题。

推荐答案

另一个选项是使用哈希表：

Function CheckSomething
{
   # Perform a check here. If check failed, add to the results list.
   if ($check -eq $true) {$results['CheckSomething'] = 'Pass'}
   else {$results['CheckSomething'] = 'Fail}'
}

Function CheckSomethingElse
{
    # Perform another check. If check failed, add to the results list.
    if ($check -eq $true) {$results['CheckSomethingElse'] = 'Pass'}
    else {$results['CheckSomethingElse'] = 'Fail}'
}

Function ShowResults
{
    $results;
}

$Results = @{}
CheckSomething
CheckSomethingElse
ShowResults

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