Batcher

回复 1# ethan.huang

@echo off
set "DateA=2022-08-17"
set "DateB=2022-08-05"
call :DateToDays %DateA:~0,4% %DateA:~5,2% %DateA:~8,2% DaysX
call :DateToDays %DateB:~0,4% %DateB:~5,2% %DateB:~8,2% DaysY
set /a DayZ=DaysX-DaysY
echo %DateA%和%DateB%间隔的天数是：%DayZ%
pause
goto :eof

:DateToDays %yy% %mm% %dd% days
setlocal ENABLEEXTENSIONS
set yy=%1&set mm=%2&set dd=%3
if 1%yy% LSS 200 if 1%yy% LSS 170 (set yy=20%yy%) else (set yy=19%yy%)
set /a dd=100%dd%%%100,mm=100%mm%%%100
set /a z=14-mm,z/=12,y=yy+4800-z,m=mm+12*z-3,j=153*m+2
set /a j=j/5+dd+y*365+y/4-y/100+y/400-2472633
endlocal&set %4=%j%&goto :EOF
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