Question

我想在输出哈希表（$htInput）中使用输入哈希表（$htOutput）中的键，而不知道具体的键名只是它们的数字位置。我可以使用$counter循环中的for变量访问各个输入哈希表键：

$main = {
    Begin {
        Write-Host "SO Question Begin..." -ForegroundColor Black -BackgroundColor Green
    }
    Process {
        try {
            $htInput = @{Alpha = 1; Bravo = 2; Charlie = 3; Delta = 4; Echo = 5}
            $htOutput = @()
            for ($counter = 0; $counter -lt $htInput.Count; $counter++) {
                $rzlt = $rzlt + $counter
                $htOutput += $rzlt
            }
            # Expected Output: $htOutput = @{Alpha = 0; Bravo = 1; Charlie = 3; Delta = 6; Echo = 10}
            # Actual Output  : $htOutput = @(0; 1; 3; 6; 10)
            return $htOutput
        } catch {
            Write-Host "Error: $($_.Exception)" -ForegroundColor White -BackgroundColor Red 
            break
        }
    }
    End {
        if ($?) {
            Write-Host "SO Question End..." -ForegroundColor Black -BackgroundColor Green
        }
    }
}

& $main

预期输出为：

$htOutput = @{Alpha = 0; Bravo = 1; Charlie = 3; Delta = 6; Echo = 10}

但实际输出是：

$htOutput = @(0; 1; 3; 6; 10)

请指教？

Answer 1

感觉就像做作业。但是，我看到你真诚的努力，我喜欢。您将结果定义为数组 - $htOutput = @()，因为您已将结果定义为数组。您需要将其作为哈希表 - $htOutput = @{}。

注意：最好初始化所有变量。需要注意的第二件事是，他通过.GetEnumerator排序可能会受到您的区域设置的影响。这可能导致偏离你希望的结果。

$main = {
    begin {
        Write-Host "SO Question Begin..." -ForegroundColor Black -BackgroundColor Green
    }
    process {
        try {
            $htInput = @{Alpha = 1; Bravo = 2; Charlie = 3; Delta = 4; Echo = 5}
            $htOutput = @{}
            $temp = 0
            $counter = 0
            ForEach ($item in $htInput.GetEnumerator()) {
                $temp = $temp + $counter
                $htOutput.Add($item.key,$temp)
                $counter++
            }
            # Expected Output: $htOutput = @{Alpha = 0; Bravo = 1; Charlie = 3; Delta = 6; Echo = 10}
            # Actual Output  : $htOutput = @(0; 1; 3; 6; 10)
            return $htOutput
        } 
        catch {
            Write-Host "Error: $($_.Exception)" -ForegroundColor White -BackgroundColor Red 
            break
        }
    }
    end {
        If ($?) {
            Write-Host "SO Question End..." -ForegroundColor Black -BackgroundColor Green
        }
    }
}

& $main

从输入哈希表添加键到输出哈希表

1 个答案: