PowerShell 複製 $servers | Select-String SQL 我仔細查看了在另一篇名為 《多種使用 regex方法》的文章中的 Select-String、-match 和$Matches 變數。$null或空白測試$null 或空陣列可能很棘手。 以下是陣列的常見陷阱。乍看之下,這句話看起來應該可行。PowerShell 複製 ...
上面建议的类型 Dictionary[int,string] 的完整名称是 System.Collections.Generic.Dictionary[int,string]。7.2 一元运算符语法:Syntax 复制 unary-expression: primary-expression expression-with-unary-operator expression-with-unary-operator: , new-lines~opt~ unary-expression -not new-lines~opt~ unary-...
Use Unix line endings for shell scripts (#15180) Apr 13, 2021 .gitignore Convert powershell/PowerShell-Windows-CI to GitHub Actions (#24899) Feb 1, 2025 .globalconfig Enable CA1868: Unnecessary call to 'Contains' for sets (#21165) Mar 1, 2024 .mailmap Add Git mailmap for Andy Jordan...
PowerShell 复制 # This statement returns true because book contains the string "oo" 'book' -match 'oo' 字符类虽然字符文本在知道确切的模式时工作,但字符类允许你不太具体。字符组[character group] 允许一次匹配任意数量的字符,而 [^character group] 仅匹配组中的字符 NOT。Powe...
運算子-contains會檢查集合中的值。 一旦找到相符專案,就會傳$true回 。 PowerShell $array=1..6if($array-contains3) {# do something} 這是查看集合是否包含您值的慣用方式。 每次使用Where-Object(或-eq) 會逐步執行整個清單,而且速度明顯變慢。
When you run the function, the value you supply for a parameter is assigned to a variable that contains the parameter name. The value of that variable can be used in the function. The following example is a function calledGet-SmallFiles. This function has a$Sizeparameter. The function displa...
function foo([string]$foo = "foo", [string]$bar = "bar") { Write-Host "Arg: $foo"; Write-Host "Arg: $bar"; } The param statement is supported in functions as well so if you do not wish to specify it in the function declaration, you can do so in the first line of the fun...
[Parameter(Mandatory=$true)][String]$Name, [Parameter(Mandatory=$true)][String]$Operator, [Parameter(Mandatory=$true)]$DefaultValue, [Parameter(Mandatory=$true)][String]$Msg)try{$Value=Get-ItemPropertyValue-Path"Registry::$Key"-ErrorActionIgnore-WarningActionIgnore-Name$Name$Result= F_Tools-Key...
The Notes parameters specifies additional information about the object. If the value contains spaces, enclose the value in quotation marks ("). Type:String Position:Named Default value:None Required:False Accept pipeline input:False Accept wildcard characters:False ...
使用Select-String可以过滤出文本文件中的信息。下面的命令行会从文件中过滤出包含 third短语的行。 PS C:\PowerShell> Get-Content .\info.txt | Select-String "third" Third Line 1. 2. 处理逗号分隔的列表 在PowerShell中处理逗号分隔的列表文件中的信息时你须要使用Import-Csv文件。为了测试,先创建一个逗...