如果运行一夜，powershell中的时间检查将始终返回负错误

我意外地在错误的时间安排了一个GPO任务，没有造成太多的麻烦，因此我决定在我的powershell脚本中添加一个时间检查，以确保它们只在核心工作时间之外运行。很久以前，我在一个文件夹中找到了这段代码，但不幸的是，我找不到适当的链接

如果它在白天运行，它工作得很好，但是当时间是夜间时，它返回一个负整数错误

以下是代码：

     Function TimeCheck {


  $script:WorkingHours = "18:00-7:00"

  if ($script:WorkingHours -match '^[0-9]{1,2}:[0-5][0-9]-    [0-9]{1,2}:[0-5][0-9]$') {

        $current = Get-Date
        $start = Get-Date ($script:WorkingHours.split("-")[0])
        $end = Get-Date ($script:WorkingHours.split("-")[1])

        # correct for hours that span overnight
        if (($end-$start).hours -lt 0) {
            $start = $start.AddDays(-1)
        }

        # if the current time is past the start time
        $startCheck = $current -ge $start

        # if the current time is less than the end time
        $endCheck = $current -le $end

        # if the current time falls outside the window
        if ((-not $startCheck) -or (-not $endCheck)) {

    write-host "[-] Time is outside operational window"

            # sleep until the operational window starts again
            $sleepSeconds = ($start - $current).TotalSeconds

            if($sleepSeconds -lt 0) {
                # correct for hours that span overnight
                $sleepSeconds = ($start.addDays(1) - $current).TotalSeconds
            }
            # sleep until the wake up interval
    
    write-host '[!] sleeping for' $sleepSeconds

            Start-Sleep -Seconds $sleepSeconds
        }
    }

}

欢迎所有想法，希望有人能看到我看不到的东西

---

谢谢

如果你的帖子提到了你创建regex的时间，我很快就写了这几行代码

$start = Get-Date -Hour 18 -Minute 0 -Second 0 -Format HH:mm
$end = Get-Date -Hour 7 -Minute 0 -Second 0 -Format HH:mm
$now = Get-Date -Format HH:mm
if (($now -gt $start) -or ($now -lt $end))
{...}

---

我建议您从实际的DateTime对象开始，而不是使用字符串操作。它将简化您的代码，并最终变得更加健壮

以下脚本检查当前（日期）时间是否介于给定的开始/结束时间之间

$start = ([DateTime]::ParseExact('18:00', 'HH:mm', $null)).TimeOfDay.TotalSeconds
$end = [DateTime]::ParseExact('07:00', 'HH:mm', $null).TimeOfDay.TotalSeconds

$current = (Get-Date).TimeOfDay.TotalSeconds
if (($start -gt $end) -and (($start -lt $current) -or ($current -lt $end))) {
    write-host "[-] Time is in operational window"
} elseif (($start -lt $end) -and (($start -lt $current) -and ($current -lt $end))) {
    write-host "[-] Time is in operational window"
} else {
    write-host "[-] Time is outside operational window"
}

---

您应该使用适当的时间类型，即，这使比较更容易：

[timespan]$start=（$script:WorkingHours-split“-”）[0]
[timespan]$end=[timespan]（$script:WorkingHours-split“-”号“[1]
[timespan]$current=（获取日期）。TimeOfDay
#支票
$outsideOperationalWindow=$current-lt$start-和$current-ge$end