如何刪除“？”之類的字符從陣列 powershell

Question

我正在嘗試驗證從 Active Directory 中的 PC 描述中獲取的文本字符串。
但我想刪除像“？？”的單個值這樣的流氓字符。 在驗證任何文本之前從任何文本。

我以這個測試代碼為例。 但每當它碰到隨機字符“？？” 它拋出這個錯誤：
錯誤：

parsing "??" - Quantifier {x,y} following nothing.
At C:\Users\#####\OneDrive\Workingscripts\testscripts\removeingfromarray.ps1:11 char:5
+ If ($charigmorematch -match $descstr)
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : OperationStopped: (:) [], ArgumentException
    + FullyQualifiedErrorId : System.ArgumentException

當我想要做的就是將它從數組中刪除！ 非常感謝任何幫助。

這是我的示例代碼。

##Type characters to remove in array.
$charigmorematch = @("?"; "@"; "$")
##array declare
$userdesc = @()

###Where this would be an AD description from AD.  
$ADUser = "Offline - ?? - test"

###Split AD Descrip into individual strings
$userdesc = $ADUser.Split("-").Trim()

###Run through them to check for rogue characters to remove
ForEach($descstr in $userdesc)
{

###If match found try and take it out
If ($charigmorematch -match $descstr)
{

###Store match in variable.  
$strmatch = ($charigmorematch -match $descstr)

###Get the index of the string
$indexstr = $userdesc.indexof($descstr)

Write=host "Match: $strmatch Index: $indexstr"
###Once found a match of a rogue character then remove from the array!
##But I haven't figured out that code yet.  

###Then a command to remove the string from the array with the index number.
###In this case it's likely to be [1] to remove. But the code has to work that out.  

}
}

Answer 1

# Sample input.
$ADUser = "Offline - ?? - test"

# Split into tokens by "-", potentially surrounded by whitespace,
# and filter out tokens that contain '?', '@', or '$'.
($ADUser -split '\s*-\s*') -notmatch '[?@$]'

結果是以下標記數組： 'Offline', 'test'

請注意， -notmatch與（也）對字符串進行操作的所有比較運算符一樣，充當過濾器，將數組作為 LHS，就像這里的情況一樣（ -split始終返回一個數組）。