Clear-Variable [-Name] <String[]> [-Include <String[]>] [-Exclude <String[]>] [-Force] [-PassThru] [-Scope <String>] [-WhatIf] [-Confirm] [<CommonParameters>]DescriptionThe Clear-Variable cmdlet deletes the data stored in a variable, but it does not delete the variable...
若要清除变量,还可以使用 Clear-Variable。 可以将数学运算符与变量一起使用,如以下示例所示: PowerShell $area=$length*$width$sum=$num1+$num2$path=$folder+$file 可以使用 Set-Variable cmdlet 设置变量的值。 使用此 cmdlet 时,在引用名称时不包括$符号,如以下示例所示: ...
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Get-Variable Cmdlet Gets the variables in the current console. New-Variable Cmdlet Creates a new variable. Set-Variable Cmdlet Sets the value of a variable. Creates the variable if one with the requested name does not exist. Remove-Variable Cmdlet Deletes a variable and its value. Clear-Varia...
Clear-ItemPropertyDeletes the value of a property but does not delete the property. Clear-VariableDeletes the value of a variable. Compare-ObjectCompares two sets of objects. Complete-BitsTransferCompletes a BITS transfer job. Complete-TransactionCommits the active transaction. ...
There are more cmdlets specific to Windows PowerShell variables: PS C:UsersUser2> get-command -noun variable CommandType NameDefinition Cmdlet Clear-Variable Clear-Variable [-Name] <Stri… Cmdlet Get-Variable Get-Variable [[-Name] <Strin… ...
可以使用 InformationAction 通用参数控制信息记录的显示。 还可以使用 $InformationPreference 首选项变量更改行为。 有关 $InformationPreference的详细信息,请参阅 about_Preference_Variables。备注 信息变量包含命令生成的所有信息消息,包括来自调用嵌套函数或脚本的信息消息。
It doesn't change the structure of the error object that's stored in the $Error automatic variable. For information about the $Error automatic variable, see about_automatic_variables.The following command takes the ErrorRecord object associated with the most recent error in the error array...
Describes variables that store state information for and are created and maintained by PowerShell. Conceptually, most of these variables are considered to be read-only. Even though they can be written to, for backward compatibility they should not be written to. Here is a list of the auto...
"! Executes stored OLE activities methods Flush. "! Clears the internal output buffer "! when the OutputMode property is set to mc_OutputBuffer methods ClearOutput. "! Evaluates a PowerShell expression "! If the expression returns an object this function returns -1, "! otherwise 0. Output,...