DOS 数字格式 数字前面加0 1转为0001

@echo on@SET FILE=%DATE:~0,4%%DATE:~5,2%%DATE:~8,2%setlocal enabledelayedexpansionFOR /L %%i IN (10001,1,10030) do (set j=%%imkdir !j:~-4!echo.>!j:~-4!//%FILE%!j:~-4!.txt) 

 

!!表示延迟变量