> 1：创建一堆文件
> 2：调用一些外部应用程序来处理所有不同的文件
自上次快照以来的创建时间
> 3：删除文件
> 4：goto 1

原来,Windows不能保证在用户创建文件时会删除创建时间,而是创建一个具有相同名称的文件.

我写了一个小型的PowerShell脚本来验证这一点：

ls | Remove-Item

$fileListOld = @{}
foreach($i in 1..1000)
{
    $fname = [string]::Format("{0}.txt",$i)
    "tst" >> $fname    
}

ls | % { $fileListOld[$_.Name] = $_ }
ls | Remove-Item

foreach($i in 1..1000)
{
    $fname = [string]::Format("{0}.txt",$i)
    "tst" >> $fname    
}

$fileListNew = @{}
ls | % { $fileListNew[$_.Name] = $_ }

$count = 0



foreach ($fname in $fileListNew.Keys)
{
    if ($fileListNew[$fname].CreationTimeUtc -eq $fileListOld[$fname].CreationTimeUtc)
    {
        Write-Host Same creation time -ForegroundColor Red
        Write-Host $fname -ForegroundColor Red
        $count++
    }
}

Write-Host $count

输出：

...
...
Same creation time
241.txt
Same creation time
944.txt
Same creation time
908.txt
Same creation time
631.txt
Same creation time
175.txt
Same creation time
798.txt
Same creation time
192.txt
Same creation time
961.txt
Same creation time
476.txt
Same creation time
566.txt
Same creation time
945.txt
Same creation time
681.txt
Same creation time
880.txt
Same creation time
162.txt
Same creation time
634.txt
Same creation time
746.txt
Same creation time
442.txt
Same creation time
35.txt
Same creation time
96.txt
Same creation time
771.txt
Same creation time
787.txt
Same creation time
972.txt
Same creation time
642.txt
Same creation time
495.txt
Same creation time
625.txt
Same creation time
666.txt
Same creation time
660.txt
Same creation time
6.txt
Same creation time
593.txt
Same creation time
549.txt
Same creation time
842.txt
Same creation time
314.txt
Same creation time
148.txt
**1000**

如果我睡了一段时间(> 30秒),删除后所有的文件将有正确的时间戳.

有没有办法解决这个问题？一些winapi调用删除文件好吗？