PS> $empty = $null PS> $empty[0] Error: Cannot index into a null array. 因此,在尝试访问数组中的元素之前,请确保数组不是 $null。Count数组和其他集合具有计数属性,可告知数组中有多少项。PowerShell 复制 PS> $data.count 4 PowerShell 3.0 向大多数对象添加了计数属性。 你可以使用单个对象,它应该...
When no data type is specified, PowerShell creates each array as an object array (System.Object[]). To determine the data type of an array, use the GetType() method. For example:PowerShell Copy $A.GetType() To create a strongly typed array, that is, an array that can contain only...
$array = 1..5 | ForEach-Object { "ATX-SQL-$PSItem" } 通常當我們想到使用管道時,我們會聯想到典型的 PowerShell 單行指令。 我們可以將 foreach() 語句和其他迴圈搭配於管線中使用。 因此,我們可以將項目放入管線,而不是在迴圈中將項目新增至陣列。PowerShell 複製 ...
PS C:\> $arr | Select-String "pdf" PS C:\Code> $arr -is [array] True PS C:\Code> $arr | Select-Object -First 1 | Format-List * PSPath : Microsoft.PowerShell.Core\FileSystem::C:\0605 PSParentPath : Microsoft.PowerShell.Core\FileSystem::C:\ PSChildName : 0605 PSDrive : C ...
"D:\\Program Files\\Git\\mingw64\\share\\git\\git-for-windows.ico", // git的图标 "historySize": 9001, // 终端窗口记忆大小 "padding": "0, 0, 0, 0", // 边距 "snapOnInput": true, "useAcrylic": false // 是否开启透明度 } ] }, // Add custom color schemes to this array. ...
When you use positional parameters, type one or more values after the function name. Positional parameter values are assigned to the$argsarray variable. The value that follows the function name is assigned to the first position in the$argsarray,$args[0]. ...
One of the very first things people notice about Windows PowerShell is this: PowerShell makes it very easy to create arrays and to add new items to arrays. With VBScript, these same tasks are a bit … challenging … to say the least: you either have to declare the array size in advanc...
Control size of Excel window openned with PoweShell? Conversion error when inserting into a SQL Server table Convert a perl script to use in powershell instead Convert a string to a PSObject Convert array to string Convert Arraylist to delimited string Convert C# code in to PowerShell Script ...
ve gotten several emails similar to this: “Hey, Scripting Guys. I’m having the darnedest time with the simplest PowerShell script you can imagine. All I want to do is determine the size of a folder, but I just can’t do it; no matter what I try the folder size comes out blank....
powershell|Set-Window-X2040-Y142-Passthru ProcessName Size TopLeft BottomRight---power...