=null) {thrownewArgumentException("Specified path already exists"); }for(inti =0; i < table.Rows.Count; i++) { DataRow row = table.Rows[i]; DataRow copyRow = copyTable.NewRow(); copyRow.ItemArray = row.ItemArray
It isn't easy to delete elements from an array, but you can create a new array that contains only selected elements of an existing array. For example, to create the $t array with all the elements in the $a array except for the value at index position 2, type:PowerShell Copy ...
$myarray = [System.Collections.ArrayList]::new() [void]$myArray.Add('Value') 我们正在调用 .NET 以获取此类型。 在本例中,我们将使用默认构造函数来创建它。 然后调用 Add 方法向其中添加项。我在行首使用 [void] 是为了禁用返回代码。 某些 .NET 调用会这么做,并可能会产生意外输出。如果数组中的唯一...
[-EncodedArguments <Base64EncodedArguments>] [-EncodedCommand <Base64EncodedCommand>] [-ConfigurationName <string>] [-File - | <filePath> <args>] [-ExecutionPolicy <ExecutionPolicy>] [-Command - | { [-args <arg-array>] } | { <string> [<CommandParameters>] } ] PowerShell[.exe] -...
As a binary operator, the comma creates an array or appends to the array being created. In expression mode, as a unary operator, the comma creates an array with just one member. Place the comma before the member. PowerShell $myArray=1,2,3$SingleArray= ,1Write-Output(,1) ...
A PowerShell array is a component that enables the storage of more than one item in a variable or a field. For instance, to assign multiple values to a variable, use the script$a=1,2,3. PowerShell treats each item in an array as a separate element. To address each item in an arra...
Modify an existing firewall rule When a rule is created, Netsh and Windows PowerShell allow the administrator to change rule properties and influence, but the rule maintains its unique identifier (in Windows PowerShell this is specified with the-Nameparameter). ...
Add-BitsFileAdds one or more files to an existing Background Intelligent Transfer Service (BITS) transfer job. Add-ComputerAdds the local computer to a domain or workgroup. Add-ContentAdds content to the specified items, such as adding words to a file. ...
Automatic unraveling can also be confusing in the context of returning an object from a function call. If you would like to return an enumerable object from a function or script, you’ll want to wrap that object in an array using the unary comma operator. ...
The Select-Object cmdlet selects specified properties of an object or set of objects. It can also select unique objects, a specified number of objects, or objects in a specified position in an array. To select objects from a collection, use the First, La