我正在处理我的第一个PowerShell脚本,无法确定循环。
我有以下内容,会重复 $ ActiveCampaigns 次数:
Write-Host "Creating $PQCampaign1 Pre-Qualified Report"
Invoke-Item "$PQCampaignPath1\PQ REPORT $PQCampaign1.qvw"
Write-Host "Waiting 1 minute for QlikView to update"
sleep -seconds 60 # Wait 1 minute for QlikView to Reload, create Report and Save.
DO{
Write-Host "Daily Qlikview Reports"
Write-Host "Wating for QlikView to create the $PQCampaign1 PQ Report"
Get-Date
Write-Host "Checking...."
sleep -seconds 1
Write-Host ""
Write-Host "Not Done Yet"
Write-Host "Will try again in 5 seconds."
Write-Host ""
sleep -seconds 5
}
Until (Test-Path "$PQCampaignPath1\$PQCampaign1 $PQReportName $ReportDate.xlsx" -pathType leaf)
Get-Date
Write-Host "Done with $PQCampaign1 PQ Report. Wait 10 seconds."
sleep -seconds 10
这些参数需要增加每个循环一个:
$PQCampaign1
(应该成为$PQCampaign2
,然后是3,等等。)$PQCampaignPath1
(应该成为$PQCampaignPath2
,然后是3,等等。)因此,如果$ActiveCampaigns
在某一天设置为8,则需要重复8次,最后一次必须打开$PQCampaign3
$PQCampaignPath8
。
我该如何解决这个问题?
答案 0 :(得分:83)
使用:
1..10 | % { write "loop $_" }
输出:
PS D:\temp> 1..10 | % { write "loop $_" }
loop 1
loop 2
loop 3
loop 4
loop 5
loop 6
loop 7
loop 8
loop 9
loop 10
答案 1 :(得分:29)
这可能是您正在寻找的:
for ($i=1; $i -le $ActiveCampaigns; $i++)
{
$PQCampaign = Get-Variable -Name "PQCampaign$i" -ValueOnly
$PQCampaignPath = Get-Variable -Name "PQCampaignPath$i" -ValueOnly
# Do stuff with $PQCampaign and $PQCampaignPath
}
答案 2 :(得分:23)
这是在PowerShell中循环任意次数的简单方法。
它与上面的for
循环相同,但对于较新的程序员和脚本编写者来说更容易理解。它使用范围和foreach。范围定义为:
range = lower..upper
或
$range = 1..10
范围也可以直接在for
循环中使用,虽然不是最佳方法,但任何性能损失或额外的处理指令都不会引起注意。解决方案如下:
foreach($i in 1..10){
Write-Host $i
}
或者在你的情况下:
$ActiveCampaigns = 10
foreach($i in 1..$ActiveCampaigns)
{
Write-Host $i
If($i==$ActiveCampaigns){
// Do your stuff on the last iteration here
}
}
答案 3 :(得分:1)
See this link。它向您展示了如何在PowerShell中动态创建变量。
这是基本的想法:
for ($i=1; $i -le 5; $i++)
{
New-Variable -Name "var$i" -Value $i
Get-Variable -Name "var$i" -ValueOnly
}
(取自提供的链接,我不承担代码。)