@echo off
setlocal EnableDelayedExpansion
for /l %%i in (01, 01, 31) do (
SET lday=%%i
SET month=01
SET year=2025
IF !lday! EQU 08 (
SET /a lday=010
)
IF !month! EQU 08 (
SET /a month=010
)
IF !lday! EQU 09 (
SET /a lday=011
)
IF !month! EQU 09 (
SET /a month=011
)
set /A lday=!lday!-1
set /A month=!month!-0
IF !lday! LSS 1 IF !month! EQU 1 (
SET lday=31
SET /A month=!month!-1+12
SET /A year=!year!-1
)
IF !lday! LSS 1 IF !month! EQU 2 (
SET lday=31
SET /A month=!month!-1
)
IF !lday! LSS 1 IF !month! EQU 3 (
SET lday=28
SET /A month=!month!-1
)
IF !lday! LSS 1 IF !month! EQU 4 (
SET lday=31
SET /A month=!month!-1
)
IF !lday! LSS 1 IF !month! EQU 5 (
SET lday=30
SET /A month=!month!-1
)
IF !lday! LSS 1 IF !month! EQU 6 (
SET lday=31
SET /A month=!month!-1
)
IF !lday! LSS 1 IF !month! EQU 7 (
SET lday=30
SET /A month=!month!-1
)
IF !lday! LSS 1 IF !month! EQU 8 (
SET lday=31
SET /A month=!month!-1
)
IF !lday! LSS 1 IF !month! EQU 9 (
SET lday=31
SET /A month=!month!-1
)
IF !lday! LSS 1 IF !month! EQU 10 (
SET lday=30
SET /A month=!month!-1
)
IF !lday! LSS 1 IF !month! EQU 11 (
SET lday=31
SET /A month=!month!-1
)
IF !lday! LSS 1 IF !month! EQU 12 (
SET lday=30
SET /A month=!month!-1
)
IF !lday! LEQ 9 (
SET lday=0!lday!
) else (
SET lday=!lday!
)
IF !month! LEQ 9 (
SET month=0!month!
) else (
SET month=!month!
)
echo !year!!month!!lday!
pause
)
endlocal
