ComputerName Verbose Debug ErrorAction WarningAction InformationAction ErrorVariable WarningVariable InformationVariable OutVariable OutBuffer PipelineVariable WhatIf Confirm 参数验证 尽早验证输入。 如果没有有效输入则无法完成,不允许代码继续执行。 参数变量必须始终指定数据类型。 在下面的示例中,String被指定为Comput...
Use functions and modules in Windows PowerShell scripts Save Unit 3 of 7 Ask Learn Completed100 XP 7 minutes Intuitively, you would assume that the variable named$computerthat you set in a function could be accessed in the script when the function is complete. However, that's...
is a PowerShell host application used to write,test and debug scriptsor write commands in a Windows GUI. To access the ISE, clickStart, selectWindows PowerShelland chooseWindows PowerShell ISE. As an alternative, simply typepowershell_ise.exein the command shell or Windows Run box...
String To convert the string ($b = "123") data type to an integer, we can use[int]as shown below. $b=$b-as[int]$b.GetType().Name In the code above, we start with the variable$b. The current value and data type of$bare unknown to us at this point, but we want to ensure...
If you aren't using MFA, you should be able to use theCredentialparameter instead of theUserPrincipalNameparameter. First, run the command$Credential = Get-Credential, enter your username and password, and then use the variable name for theCredentialparameter (-Credential $Credential). If it do...
-notin, -inotin, -cnotin - value isn't in a collection Type -is - both objects are the same type -isnot - the objects aren't the same type Common features String comparisons are case-insensitive unless you use the explicit case-sensitive operator. To make a comparison operator ...
If you aren't using MFA, you should be able to use theCredentialparameter instead of theUserPrincipalNameparameter. First, run the command$Credential = Get-Credential, enter your username and password, and then use the variable name for theCredentialparameter (-Credential $Credential). If it do...
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...
Example 5: Use in the `DATA` section of a script This example shows aConvertFrom-StringDatacommand used in theDATAsection of a script. The statements below theDATAsection display the text to the user. PowerShell $TextMsgs=DATA{ConvertFrom-StringData@' Text001 = The $Notebook variable conta...
Allow empty prefix string in Import-Module -Prefix to override default prefix in manifest (#20409) (Thanks @MartinGC94!) Update variable/property assignment completion so it can fallback to type inference (#21134) (Thanks @MartinGC94!) Use Get-Help approach to find about_*.help.txt files...