模組: Microsoft.PowerShell.Core 針對輸入物件集合中的每個項目執行作業。語法PowerShell 複製 ForEach-Object [-InputObject <PSObject>] [-Begin <ScriptBlock>] [-Process] <ScriptBlock[]> [-End <ScriptBlock>] [-RemainingScripts <Sc
PowerShell中的管道命令和使用`Foreach-Object`都是用于处理集合数据的强大工具,但它们在使用方式和应用场景上有所不同。 ### 基础概念 **管道命令**:管道命令允许你将...
powershell numbers = 1, 2, 3, 4, 5 numbers ForEach-Object { _ * 2 } 在上面的代码中,我们首先定义了一个数组numbers,然后通过管道将其传递给ForEach-Object。在ForEach-Object的scriptblock中,我们使用"_"来引用当前正在处理的元素。然后,我们将这个元素乘以2,并通过ForEach-Object返回结果。最后,我们可...
在PowerShell中,ForEach-Object 是一个用于对集合中的每个对象执行指定操作的 cmdlet。通常,当你完成 ForEach-Object 块中的操作后,它会自然结束,并且控制权会返回到脚本或命令行的下一部分。然而,有时你可能想要提前退出循环,这可以通过使用 break 关键字来实现。 基础概念 ForEach-Object 的基本语法如下: 代码语...
将输入管道传递到ForEach时,它是ForEach-Object的别名。但是当你将ForEach放在行的开头时,它是Windows PowerShell语句。 ForEach语句将所有项目预先加载到集合中,然后一次处理它们。ForEach-Object希望项目通过管道进行流传输,从而降低了内存需求,但同时也影响了性能。
I came across an interesting behavior when looping with the ForEach-Object cmdlet that took some thought to figure out why the behavior was occurring. I was doing some bitwise anding on security descriptor and ACE flags when I realized that the output that I was expecting was noticably short...
在PowerShell 中使用 dir | % { $_.CreationTime } 可以列出当前目录中所有文件和文件夹的创建时间。这里的 % 是ForEach-Object 的简写,$_ 表示当前对象。 如果你想要以更友好的格式输出这些创建时间,可以使用以下命令: powershellCopy Code dir | ForEach-Object { $_.CreationTime.ToString("yyyy-MM-dd ...
04/20/2010 In this article Syntax Description Parameters Inputs and Outputs Show 5 more Applies To: Windows PowerShell 2.0 Performs an operation against each of a set of input objects. Syntax Copy ForEach-Object [-Process] <ScriptBlock[]> [-Begin <scriptblock>] [-End <scriptblock>] [-...
"https://api.github.com/users/powershell" "https://api.github.com/users/microsoft" "https://api.github.com/users/github" ) $urls | Foreach-Object -Parallel { try { $response = Invoke-RestMethod -Uri $_ "User $($response.login) has $($response.public_repos) repos" ...
PowerShell PowerShell - coming (in the box!) to a Longhorn Server near you mini forum hiatus to catch up on Real Work PowerShell gotcha - foreach keyword vs. foreach-object cmdlet The branching guidance whitepaper has arrived! get-hashes.ps1: Get the hashes (sha256, md5, ...