static [void] Remove([Book]$Book) { [BookList]::Initialize() [BookList]::Books.Remove($Book) } # Remove a book by property value. static [void] RemoveBy([string]$Property, [string]$Value) { [BookList]::Initialize() $Index = [BookList]::Books.FindIndex({ param(...
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PowerShell 支持一组特殊字符序列,这些序列用于表示不属于标准字符集的字符。 序列通常称为转义序列。 转义序列以反引号字符开头,称为严重重音符 (ASCII 96) ,并且区分大小写。 反引号字符也可以称为转义字符。 仅当包含在双引号 ()"字符串中时,才会解释转义序列。
在策略下启动 PowerShell 会话时,它在模式下运行ConstrainedLanguage。 此模式允许使用交互式 shell 体验,同时限制对可能被恶意参与者滥用的功能和 API 的访问。 用户可以运行 cmdlet 和本机命令,并有权访问基本语言元素。 对 PowerShell、.NET 和 COM API 的访问受到限制。
以下示例具有一个脚本块,该脚本块采用单个参数,该参数是字符串数组。 PowerShell $array='Hello','World!'Invoke-Command-ScriptBlock{param([string[]]$words)$words-join' '}-ArgumentList$array 在此示例中,仅将 中的$array第一项传递给脚本块。
Convert the input string into the array of the words: 1 2 3 $Inputstring="Microsoft-SQL-Server" $CharArray=$InputString.Split("-") $CharArray Output: Microsoft SQL Server Following is the output of the script: The above code splits the string based on the “-” character and saves th...
The scriptblock accepts two parameters, the text to split and the current index.$_is bound to the character at the current index. Copy functionSplitWhitespaceInMiddleOfText{param([string]$Text,[int]$Index)if($Index-lt10-or$Index-gt40){return$false}$_-match'\s'}$inputText="Some text ...
false -Name <String[]> Specifies the service names for the service to be started. The parameter name is optional. You can use Name or its alias, ServiceName, or you can omit the parameter name. Required? true Position? 0 Default value None Accept pipeline input? True (ByPropertyName, By...
The characters in the array are joined into a string. The characters are separated by the value of the$OFSpreference variable. For more information, seeabout_Preference_Variables. The order of the characters in the array is determined by the ASCII value of the character. For example, the ASCI...
First I check that a column contains an open bracket character ([). If it doesn’t, I can split the string at the colon character (:). If not then I need to split is at the string']:'and also trim off the opening bracket. ...