Variable substitution PowerShell has another option that is easier. You can specify your variables directly in the strings. PowerShell $message="Hello,$first$last." The type of quotes you use around the string makes a difference. A double quoted string allows the substitution but a singl...
'Use the $PROFILE variable.' Output Use the $PROFILE variable. 包含特殊字符的变量名称 变量名称以美元 ($) 符号开头,可以包含字母数字字符和特殊字符。 变量名称长度仅受可用内存限制。 最佳做法是变量名称仅包含字母数字字符,下划线 (_) 字符。 包含空格和其他特殊字符的变量名称很难使用,应避免使用。
Everything you wanted to know about variable substitution in strings - PowerShell | Microsoft Docs 2Variable substitution 2Command substitution 3Command execution 2Format string 3Format values as arrays 2...
TheSelect-Stringcommand in the function uses thePathandPatternparameters. ThePathparameter uses the$PSHelpvariable to get the path. ThePatternparameter uses the stringAbout_as the search criteria. To run the function, typeSearch-Help. The function'sSelect-Stringcommand displays the output in the ...
InformationAction 的有效值為 SilentlyContinue、Stop、Continue、Inquire、Ignore 或 Suspend,預設值為 SilentlyContinue。 針對來自命令的 Write-Host 資料,您可使用 InformationVariable 將字串指定為要儲存的變數名稱。 InformationPreference (新的喜好設定變數) 能指定您在 Windows PowerShell 工作階段中針對資訊串流資料...
Get-PSDrive [[-Name] <String[]>] [-Scope <String>] [-PSProvider <String[]>] [-V erbose] [-Debug] [-ErrorAction <ActionPreference>] [-ErrorVariable <String>] [- OutVariable <String>] [-OutBuffer <Int32>] 使用PSProvider 参数,可以仅显示受特定提供程序支持的 PowerShell 驱动器。 例如...
Invoke-RestMethod [-FollowRelLink] [-MaximumFollowRelLink <Int32>] [-ResponseHeadersVariable <String>] [-StatusCodeVariable <String>] [-UseBasicParsing] [-Uri] <Uri> [-HttpVersion <Version>] [-WebSession <WebRequestSession>] [-SessionVariable <String>] [-AllowUnencryptedAuthentication] [-Aut...
Use a quotation mark, like ' or ", to begin a string. 在单引号 here-strings 中,变量按字面解释并准确重现。 例如: PowerShell复制 @' The $profile variable contains the path of your PowerShell profile. '@ 此命令的输出为: Output复制 ...
Invoke-RestMethod [-FollowRelLink] [-MaximumFollowRelLink <Int32>] [-ResponseHeadersVariable <String>] [-StatusCodeVariable <String>] [-UseBasicParsing] [-Uri] <Uri> [-HttpVersion <Version>] [-WebSession <WebRequestSession>] [-SessionVariable <String>] [-AllowUnencryptedAuthentication] [-Aut...
Method static string EscapeBlockCommentContent(string value) EscapeFormatStringContent Method static string EscapeFormatStringContent(string value) EscapeSingleQuotedStringContent Method static string EscapeSingleQuotedStringContent(string value) EscapeVariableName Method static string EscapeVariableName(string value)...