The ForEach-Object cmdlet performs an operation on each item in a collection of input objects. The input objects can be piped to the cmdlet or specified using the InputObject parameter. Starting in Windows PowerShell 3.0, there are two different ways to
else { // Get the table name, row number and type of path from the // path specified string tableName; int rowNumber; PathType type = GetNamesFromPath(path, out tableName, out rowNumber); if (type == PathType.Table) { // O...
You can run ForEach-Object -Parallel from within a ForEach-Object -Parallel script block or function. However, stopping the cmdlet from running using Ctrl+C, does not always clean up the underlying runspaces immediately, due to how PowerShell stops a running cmdlet. But I question how useful...
about_Foreach about_Format.ps1xml about_Functions about_Functions_Advanced about_Functions_Advanced_Methods about_Functions_Advanced_Parameters about_Functions_Argument_Completion about_Functions_CmdletBindingAttribute about_Functions_OutputTypeAttribute about_Function_Provider about_Group_Policy_Settings about_Hash...
# 创建一个可以批量执行的磁盘管理脚本 # 例如,批量格式化多个分区 $drives = Get-Partition | Where-Object { $_.OperationalStatus -eq "Offline" } foreach ($drive in $drives) { Initialize-Disk -Number $drive.DiskNumber -PartitionStyle GPT New-Partition -DiskNumber $drive.DiskNumber -UseMaximumSiz...
使用PowerShell 异步操作技术,如后台作业 (Start-Job) 或并行处理 (ForEach-Object -Parallel),提高执行效率。 示例:Get-WmiObject -Class Win32_Service | ForEach-Object -Parallel { $_.StopService() } 3.2 性能优化 优化查询语句,避免不必要的属性检索,减少网络开销。
for each item passed down the pipeline, and the end statement after all pipeline input has been processed. 3. 采用main函数的script语句 function Main { (…) HelperFunction (…) } function HelperFunction { (…) } . Main 3. 如何调用script ...
10..15..-5|ForEach-Object{Write-Output$_} The start and end values of the range can be any pair of expressions that evaluate to an integer or a character. The endpoints of the range must be convertible to signed 32-bit integers ([int32]). Larger values cause an error. Also, if ...
Within a pipeline, theprocessblock executes once for each input object that reaches the function. If the pipeline input that reaches the function is empty, theprocessblock doesn't execute. Thebegin,end, andcleanblocks still execute. Important ...
class M { static [int] DoubleStrLen([string]$value) {return2*$value.Length } static [long] AggregateString([string[]]$values, [func[string, int]]$selector) { [long]$res=0foreach($sin$values){$res+=$selector.Invoke($s) }return$res} } [M]::AggregateString((gci).Name, [M]:...