Clear-Variable:删除一个或多个变量的值 Remove-Variable:删除一个或多个变量 由于变量是一个项 (§3.3),所以它可以被大多数与项相关的 cmdlet 操作。 表示变量的对象的类型在 §4.5.3中介绍。 变量对象存储在驱动器变量上:(§3.1)。 3.2 工作位置 当前工作位置 是命令指向的默认位置。 如果在调用命令时未提供显式路径(§3.4),则
To create a strongly typed array, that is, an array that can contain only values of a particular type, cast the variable as an array type, such as string[], long[], or int32[]. To cast an array, precede the variable name with an array type enclosed in brackets. For example:Power...
$MyVariable=1,2,3$Path="C:\Windows\System32" 变量可用于存储命令的结果。 例如: PowerShell $Processes=Get-Process$Today= (Get-Date).DateTime 若要显示变量的值,请键入变量名称,前面带美元符号 ($)。 例如: PowerShell $MyVariable Output
1、当前文件夹运行命令 进入存放脚本文件的命令，然后执行：.\psl1脚本文件 我的脚本文件存放在F盘的桌...
True True Object[] System.Array $item为一个对象数组 动态和静态类型 一般对PowerShell变量重新赋值时,变量类型会自动改变,这体现了动态语言的特点; 而同样使用.NET 的C#却是静态强类型的语言,既然很像C#因此PowerShell也可以使用静态类型,静态类型带来的严谨性能避免不必要的错误。
You also can create an array by using the output from a command. For example: PowerShell $users=Get-ADUser-Filter*$files=Get-ChildItemC:\ You can verify whether a variable is an array by using theGetType()method on the variable. TheBaseTypelisted will beSystem.Array. ...
If you’d like to create a new array ($arrSubset) containing those values, well, that only requires one line of code as well: Copy $arrSubset = $arrColors -like "bl*" Like we said: very nice. A Place for Everything, and Everything in Its Place Of course, we still have one...
When you use positional parameters, type one or more values after the function name. Positional parameter values are assigned to the$argsarray variable. The value that follows the function name is assigned to the first position in the$argsarray,$args[0]. ...
A cast can also be performed when a variable is assigned to usingcast notation. Comma operator, 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 com...
Note that it may be safer to query the rules with theGetcommand and save it in a variable, observe the rules to be affected, then pipe them to theRemovecommand, just as we did for theSetcommands. The following example shows how the administrator can view all the blocking firewall rules...