[日期时间] [已解決] - 求 批處理 DAY1.txt 裡設定日期 由 go.bat 算出與 pc日期 之差

@echo off&setlocal enabledelayedexpansion
for /f "tokens=*" %%i in (t.txt) do (
    set ymd=%%i
    set /a "m=(1!ymd:~4,2!+5)%%12+4,y=!ymd:~,4!-m/14,d=1461*y/4+153*m/5+1!ymd:~-2!-100"
)
for /f "skip=1 tokens=1-3" %%i in ('wmic path Win32_LocalTime get Month^,Day^,Year') do (
    set /a "m=(%%j+9)%%12+4,y=%%k-m/14,d-=1461*y/4+153*m/5+%%i"
)
if !d! lss 30 (bak1.bat) else if !d! lss 0 del1.bat
echo !D!
pause>nul
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