$array[2] =13 我只是初步了解了陣列,不過這應該能幫助我在進一步學習哈希表時更好地理解它們。 什麼是哈希表? 從一般意義上說,我會先從基本技術描述哈希表開始,再轉換到 PowerShell 使用這些哈希表的其他方式。 哈希表是一種數據結構,與陣列非常類似,只是您使用索引鍵來儲存每個值(物件)。 這是基本的索引鍵...
ClearSets all element values to the default value of the array's element type. The Clear() method doesn't reset the size of the array.In the following example $a is an array of objects.PowerShell Copy $a = 1, 2, 3 $a.Clear() $a | % { $null -eq $_ } Output Copy ...
Specifies an array of items that this cmdlet omits in the operation. The value of this parameter qualifies theNameparameter. Enter a name element or pattern, such as "s*". Wildcards are permitted. Type:String[] Position:Named Default value:None ...
Clear-Variable-NameMyVariable PowerShell $MyVariable=$null 若要删除变量,请使用Remove-Variable或Remove-Item。 PowerShell Remove-Variable-NameMyVariable PowerShell Remove-Item-PathVariable:\MyVariable 还可以使用一个语句将值分配给多个变量。 以下示例将相同的值分配给多个变量: ...
Clear-EventLogDeletes all entries from specified event logs on the local or remote computers. Clear-HistoryDeletes entries from the command history. Clear-ItemDeletes the contents of an item but does not delete the item. Clear-ItemPropertyDeletes the value of a property but does not delete th...
Incidentally, you can determine the number of items in an array simply by echoing back the value of theCountproperty, like so: $a.Count Oh, one more thing: what if you to get rid ofallthe items in the array? Here’s one thought; call theClearmethod: ...
Test-PrivEsc is a function that can be used for finding whether WSUS updates over HTTP are vulnerable to PrivEsc, Clear Text credentials are stored in common places, AlwaysInstallElevated is vulnerable to PrivEsc, Unquoted Service Paths exist, and enum of possible weak write permissions for service...
The example uses the-splitoperator to convert the input string into an array of strings. Each string in the array includes the name of a different city. However, the split strings include extra spaces. TheTrim()method removes the leading and trailing spaces from each string. ...
The values can be passed to theOptionparameter as an array of values or as a comma-separated string of those values. The cmdlet will combine the values using a binary-OR operation. Passing values as an array is the simplest option and also allows you to use tab-completion on the values....
()# Store database names in an array$databaseNames= @()while($databases.Read()){$databaseName=$databases.GetString(0)$databaseNames+=$databaseName}$databases.Close()$masterConnection.Close()# Process tables in each databaseforeach($databaseNamein$databaseN...