-contains運算子會檢查集合中是否包含您的值。 一旦找到匹配項目,就會傳回$true。 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)遍歷整個清單,速度會明顯變慢。
if语句最常见的用法是比较两个项。 PowerShell 具有特殊运算符,可用于不同的比较方案。 当使用比较运算符时,会将左右两侧的值进行比较。 -eq(等于) -eq在两个值之间执行相等检查,以确保它们彼此相等。 PowerShell $value=Get-MysteryValueif(5-eq$value) {# do something} ...
... INPUTS System.ServiceProcess.ServiceController You can pipe a service object to this cmdlet. System.String You can pipe a string that contains the name of a service to this cmdlet. OUTPUTS None By default, this cmdlet returns no output. System.ServiceProcess.ServiceController When you use ...
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...
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...
If you typeGet-SmallFileswithout a value, the function assigns 100 to$size. If you provide a value, the function uses that value. Optionally, you can provide a brief help string that describes the default value of your parameter, by adding thePSDefaultValueattribute to the description of your...
seeabout_Scopes. You can use this to build strings containing the command, parameters, and arguments you need, and then invoke the string as if it were a command. The strings that you create must follow the same parsing rules as a command that you type at the command line. For more inf...
[String]$Msg, [String]$Operator)if($Operator-eq"eq") {if($Value-eq$DefaultValue) {$Result=@{"$($Key)"="[合格项]|$($Value)|$($DefaultValue)|$($Msg)-【符合】等级保护标准."}Write-Host"$($Key)"=" [合格项]|$($Value)|$($DefaultValue)|$($Msg)-【符合】等级保护标准."-Foregroun...
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...
The Select-String cmdlet is used to find target text within a file or a variable value. For example, suppose we saved the first paragraph of this article to a text file named C:\Scripts\Test.txt. Now, suppose we need to know whether this file contains the target stringCTP. How could ...