Debugging -调试请求确认

我有一个在Powershell 3.0中运行的简单脚本：

#测试写调试
[CmdletBinding（）]
param（）
编写调试“调试消息”
写入输出“一般输出”

当我在没有参数的情况下运行它时，我会得到所需的输出：

PS C:\scripts\Test> .\debugtest.ps1
General output

当我使用

-debug

参数运行它时，Powershell要求我在打印调试消息后确认：

PS C:\scripts\Test> .\debugtest.ps1 -Debug
DEBUG: Debug message

Confirm
Continue with this operation?
[Y] Yes  [A] Yes to All  [H] Halt Command  [S] Suspend  [?] Help (default is "Y"):
General output

为什么要我确认？不应该只写调试输出并继续脚本吗

更新：

$DebugPreference

设置为

SilentlyContinue

：

PS C:\scripts\Test> $DebugPreference
SilentlyContinue
PS C:\scripts\Test> .\debugtest.ps1 -Debug
DEBUG: Debug message

Confirm
Continue with this operation?
[Y] Yes  [A] Yes to All  [H] Halt Command  [S] Suspend  [?] Help (default is "Y"):
General output

---

听起来$DebugPreference变量设置为“Inquire”

从获取帮助：

Edit:-Debug也是cmdlet公共参数，通过添加CmdletBinding（），它也是脚本的公共参数

从获取帮助：

通用参数描述

-Debug[:{$true | $false}]
    Alias: db

    Displays programmer-level detail about the operation performed by the
    command. This parameter works only when the command generates
    a debugging message. For example, this parameter works when a command
    contains the Write-Debug cmdlet.

    **The Debug parameter overrides the value of the $DebugPreference
    variable for the current command, setting the value of $DebugPreference
    to Inquire.** Because the default value of the $DebugPreference variable
    is SilentlyContinue, debugging messages are not displayed by default.

    Valid values:

        $true (-Debug:$true). Has the same effect as -Debug.

        $false (-Debug:$false). Suppresses the display of debugging
        messages when the value of the $DebugPreference is not
        SilentlyContinue (the default). 

---

我认为下列函数的第二个参数声明可以添加到任何函数中

function SetDebugPreference {
[CmdletBinding()]
Param(
    [Parameter(
        Mandatory=$true,
        HelpMessage="Please enter for `$DebugPreference a value`n('SilentlyContinue','Continue' ,'Inquire' or 'Stop')",            
        ValueFromPipeline=$true,
        ValueFromPipelineByPropertyName=$true,
        Position=0
       )]
    [ValidateSet("SilentlyContinue","Continue" ,"Inquire","Stop")]
    [Alias("dbp","dbPref")]    
    [string]
    $dbPreference,

    [Parameter(
        Mandatory=$false,
        ValueFromPipelineByPropertyName=$true,
        Position=1
       )]
    [ValidateSet("SilentlyContinue","Continue" ,"Inquire","Stop")]
    [Alias("ldbp","ldbPref")]    
    [string]
    $LocalDebugPreference="Continue"
) 
Begin {
    Write-Verbose ("Local DebugPreference: " + $DebugPreference)
    $DebugPreference=$LocalDebugPreference
    Write-Verbose ("Local DebugPreference set: " + $LocalDebugPreference)
    Write-Debug "Local debug  test"

}   
Process {
    Write-Verbose ("Global DebugPreference: " + $Global:DebugPreference)
    $Global:DebugPreference=$dbPreference
    Write-Verbose ("Global DebugPreference set: " + $Global:DebugPreference)
}

---

}

我也是这么想的，不过我的DebugPreference已经设置为SilentlyContinue。问题更新了更多信息。你说得对-当我更新脚本以显示

$DebugPreference

变量时，它被设置为Inquire。不完全是我所希望的，但我可以使用

-verbose

开关来代替我所追求的。谢谢你的回答！

function SetDebugPreference {
[CmdletBinding()]
Param(
    [Parameter(
        Mandatory=$true,
        HelpMessage="Please enter for `$DebugPreference a value`n('SilentlyContinue','Continue' ,'Inquire' or 'Stop')",            
        ValueFromPipeline=$true,
        ValueFromPipelineByPropertyName=$true,
        Position=0
       )]
    [ValidateSet("SilentlyContinue","Continue" ,"Inquire","Stop")]
    [Alias("dbp","dbPref")]    
    [string]
    $dbPreference,

    [Parameter(
        Mandatory=$false,
        ValueFromPipelineByPropertyName=$true,
        Position=1
       )]
    [ValidateSet("SilentlyContinue","Continue" ,"Inquire","Stop")]
    [Alias("ldbp","ldbPref")]    
    [string]
    $LocalDebugPreference="Continue"
) 
Begin {
    Write-Verbose ("Local DebugPreference: " + $DebugPreference)
    $DebugPreference=$LocalDebugPreference
    Write-Verbose ("Local DebugPreference set: " + $LocalDebugPreference)
    Write-Debug "Local debug  test"

}   
Process {
    Write-Verbose ("Global DebugPreference: " + $Global:DebugPreference)
    $Global:DebugPreference=$dbPreference
    Write-Verbose ("Global DebugPreference set: " + $Global:DebugPreference)
}