首先要安裝7-Zip到c:\Program Files\7-Zip；

示例如下：

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#define?Function?DeleteLog
function?DeleteLog{????
????param($filePath,$TimeOutDays)????
????$allFiles=get-childitem?-path?$filePath?????????????
????foreach?($files?in?$allFiles){????????????????
????????$daypan=((get-date)-$files.lastwritetime).days????????????????
????????if?($daypan?-gt?$TimeOutDays){????????????????????????
????????remove-item?$files.fullname?-Recurse?-force?????????????????
????????}??????????
?????}
}
#define?some?vars
cd?"C:\Program?Files\7-Zip"
$stringDate=get-date?-UFormat?"%Y%m%d"
$fileName="${stringDate}log"
#Compress?Log?and?(Delete?Log?before?one?month)
$SoucePath="C:\windows-services\log"
cmd?/c?"7z.exe?a?-t7z?D:\logs\$fileName?$SoucePath\*"
$filePath=$SoucePath
$TimeOutDays=30
DeleteLog?-filePath?$filePath?-TimeOutDays?$TimeOutDays
#Delete?Backup?log?before?two?months
$Floders=Get-ChildItem?d:\logs
foreach?($Floder?in?$Floders){????
????$Floder.lastwritetime?=?Get-Date
}
$filePath="D:\logs"
$TimeOutDays=60
DeleteLog?-filePath?$filePath?-TimeOutDays?$TimeOutDays