This snippet is similar to the previous two codes, but it uses the comma operator (,) to create an array of arrays by putting a comma before each array variable; for example, ,$array1 and ,$array2. This creates two single-element arrays, each containing the original array. Finally, the...
$array1 = 2,1,3 [System.Collections.ArrayList]$array2 = "string1",'string2','string3','string4','string5','string6' foreach($element in $array1){ $my_variable = $array2[0..($element - 1)] Write-Host my_variable contains $my_variable $array2.RemoveRange(0,$element) } 因...
Adding a new element to an existing array If I want to add an element to an existing array, it might make sense to choose the next index number, and attempt to assign a value in the same way that I change an existing value. When I do this, however, Windows PowerShell generates an ...
You can change the elements in an array, add an element to an array, and combine the values from two arrays into a third array.To change the value of a particular element in an array, specify the array name and the index of the element that you want to change, and then use the ...
1. Loop Through a PowerShell Array with ForEach Loop The best way to loop through an array in PowerShell is by using theForEachloop. TheForEachloop iterates over each element in the array and allows you to perform operations on each element individually. Here’s an example: ...
相反,使用Set-Content,Add-Content和Out-File这几条命令,而不使用重定向,可以有效地规避前面的风险。这三条命令都支持-encoding参数,你可以用它来选择字符集。 创建新驱动器 你可能会惊讶,PowerShell允许你创建新的驱动器。并且不会限制你只创建基于网络的驱动器。你还可以使用驱动器作为你的文件系统中重要目录,...
Add a Property to an Array that Adds a Range of IPs Add a URL rewrite condition on IIS using Powershell Add Array Items to Listbox Add blank column to csv with no header? Add column to text file Add columns to PowerShell array and write the result to a table Add computer to AD ...
But if you need to determine whether a variable is $null, you must put $null on the left-hand side of the equality operator. Putting it on the right-hand side doesn't do what you expect. For example, let $a be an array containing null elements: PowerShell Copy $a = 1, 2, $...
If we try to update an item that is past the last element, then we get an Index was outside the bounds of the array. error.PowerShell Copy PS> $data[4] = 'four' Index was outside the bounds of the array. At line:1 char:1 + $data[4] = 'four' + ~~~ + CategoryInfo : ...
When an object isn't an indexed collection, using the index operator to access the first element returns the object itself. Index values beyond the first element return$null. PowerShell PS> (2)[0]2PS> (2)[-1]2PS> (2)[1]-eq$nullTrue PS> (2)[0,0]-eq$nullTrue ...