中国DOS联盟

@echo off
set SrcFile=C:\test\a.txt
set SrcPath=%SrcFile:\=\\%
for /f "tokens=2 delims==" %%a in ('wmic path win32_operatingsystem get LocalDateTime /value') do set Today=%%a
for /f "tokens=2 delims==" %%a in ('wmic path CIM_logicalfile where name^="%SrcPath%" get CreationDate /value') do set FileDay=%%a
set FileDay=200807310939
set /a MinusD=%Today:~0,8%-%FileDay:~0,8%
set /a MinusT=1%Today:~8,4%-1%FileDay:~8,4%
if %MinusD% leq 0 (
  if %MinusT% gtr 10 (
    echo del /q /f "%SrcFile%"
  )
) else (
  echo del /q /f "%SrcFile%"
)