flashercs

@echo off
@REM 删除当前目录所有mp4的前9字节
cd /d "%~dp0"
dir /a-d /b *.mp4|powershell -c "foreach($f in $input){try{$stream1=New-Object System.IO.FileStream -ArgumentList ($f,'Open','Read','ReadWrite');$stream2=New-Object System.IO.FileStream -ArgumentList ($f,'Open','Write','Read');[void]$stream1.Seek(9,'Begin');$stream1.CopyTo($stream2);$stream2.SetLength($stream2.Position);}catch{}finally{if($stream1){$stream1.Close()}if($stream2){$stream2.Close()}}}"
pause
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