PowerShell 技能连载 - 隐藏参数

In the previous tip we explained how you can dump all the legal values for a PowerShell attribute. Today we’ll take a look at the [Parameter()] attribute and its value DontShow. Take a look at this function:
在前一个技能中我们介绍了如何导出一个 PowerShell 属性的所有合法值。今天我们将关注 [Parameter()] 属性和它的值 DontShow。我们来看看这个函数：

function Test-Something
{
    param
    (
        [string]
        [Parameter(Mandatory)]
        $Name,

        [Parameter(DontShow)]
        [Switch]
        $Internal
    )

    "You entered: $name"
    if ($Internal)
    {
        Write-Warning "We are in secret test mode!"
    }
}

当您运行这个函数时，IntelliSense 只暴露 -Name 参数。-Internal switch 参数并没有显示，然而您仍然可以使用它。它只是一个隐藏的参数：

PS> Test-Something -Name tobias
You entered: tobias

PS> Test-Something -Name tobias -Internal
You entered: tobias
WARNING: We are in secret test mode!