为什么我的PowerShell控制台会显示“；“未启动”；在我更改文件并创建文件之后，我会重复。（使用filesystemwatcher）

我对在ps1文件中编写脚本相当陌生，我认为一切都会顺利进行，但现在我遇到了一些问题。我正在写一个脚本来监视文件夹和文件夹中的文件（更改、更新、创建）。触发事件时，操作应启动运行.exe的进程。脚本应该连续循环。 我的exe启动有问题；就好像filesystemwatcher不识别我更改、更新或创建的文件一样。 我将非常感谢你们的帮助，谢谢

while($true){
### SET FOLDER TO WATCH + FILES TO WATCH + SUBFOLDERS 
$watcher = New-Object System.IO.FileSystemWatcher
$watcher.Path = "C:\BigData\COLLECTION_A\L_READ"
$watcher.Filter = "*.xlsx*"
$watcher.IncludeSubdirectories = $true
$watcher.EnableRaisingEvents = $true  
$watcher.NotifyFilter =  [IO.NotifyFilters]'LastAccess,LastWrite,FileName,DirectoryName'

### DECIDE WHICH EVENTS SHOULD BE WATCHED 
Register-ObjectEvent $watcher "Created" -Action $action
Register-ObjectEvent $watcher "Changed" -Action $action
Register-ObjectEvent $watcher "Renamed" -Action $action

### DEFINE ACTIONS AFTER AN EVENT IS DETECTED
$action = { Start-Process C:\Users\sammy\Documents\parsing Engine 1.0.exe}     
sleep 2}

---

您将看到Register ObjectEvent的输出。由于PSEventJob刚刚创建，尚未（通过事件）调用，因此您将其视为未启动

PS> Get-Job 4

Id     Name            PSJobTypeName   State         HasMoreData     Location             Command                  
--     ----            -------------   -----         -----------     --------             -------                  
4      e04ec31b-c2b...                 NotStarted    False                                ...                 

一旦事件从FileSystemWatcher触发，您将看到它转换为正在运行

PS> Get-Job 4

Id     Name            PSJobTypeName   State         HasMoreData     Location             Command                  
--     ----            -------------   -----         -----------     --------             -------                  
4      e04ec31b-c2b...                 Running       True                                 ...                      

我通常通过将Register ObjectEvent的输出发送到$null来吞咽它，因为如果它们没有触发，我不关心它们

### DECIDE WHICH EVENTS SHOULD BE WATCHED 
$null = Register-ObjectEvent $watcher "Created" -Action $action
$null = Register-ObjectEvent $watcher "Changed" -Action $action
$null = Register-ObjectEvent $watcher "Renamed" -Action $action

---

您将看到Register ObjectEvent的输出。由于PSEventJob刚刚创建，尚未（通过事件）调用，因此您将其视为未启动

PS> Get-Job 4

Id     Name            PSJobTypeName   State         HasMoreData     Location             Command                  
--     ----            -------------   -----         -----------     --------             -------                  
4      e04ec31b-c2b...                 NotStarted    False                                ...                 

一旦事件从FileSystemWatcher触发，您将看到它转换为正在运行

PS> Get-Job 4

Id     Name            PSJobTypeName   State         HasMoreData     Location             Command                  
--     ----            -------------   -----         -----------     --------             -------                  
4      e04ec31b-c2b...                 Running       True                                 ...                      

我通常通过将Register ObjectEvent的输出发送到$null来吞咽它，因为如果它们没有触发，我不关心它们

### DECIDE WHICH EVENTS SHOULD BE WATCHED 
$null = Register-ObjectEvent $watcher "Created" -Action $action
$null = Register-ObjectEvent $watcher "Changed" -Action $action
$null = Register-ObjectEvent $watcher "Renamed" -Action $action

---

谢谢你，斯蒂芬。谢谢你的澄清谢谢Stephen。谢谢你的澄清