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方案一】bat + date.exe(gnu)

代码如下:

@echo off

rem 调用gnu for win32的date.exe

set gnudate=c:/test/date.exe

for /f %%a in ('%gnudate% +%%y%%m01') do (

    for /f %%h in ('%gnudate% -d %%a 1 days ago +%%y-%%m-%%d') do (

        set dstdate=%%h

    )

)

echo,%dstdate%

pause

【方案二】bat + vbs

代码如下:

@echo off

>%temp%/datecalculate.vbs echo strlastdate=dateadd(d, -datepart(d, date), date)

>>%temp%/datecalculate.vbs echo strfmtdate=right(year(strlastdate),4) ^& right(0 ^& month(strlastdate),2) ^& right(0 ^& day(strlastdate),2)

>>%temp%/datecalculate.vbs echo wscript.echo strfmtdate

for /f %%a in ('cscript /nologo %temp%/datecalculate.vbs') do (

    set dstdate=%%a

)

set dstdate=%dstdate:~0,4%-%dstdate:~4,2%-%dstdate:~6,2%

echo,%dstdate%

pause

【方案三】bat

代码如下:

@echo off

setlocal enabledelayedexpansion

rem 假设系统日期格式为yyyy-mm-dd

set y=%date:~0,4%

set m=%date:~5,2%

set /a m=1!m!-101, m=m+(^!m)*12

rem 上月是否2月或小月

set /a f=^!(m-2), s=^!(m-4)|^!(m-6)|^!(m-9)|^!(m-11)

rem 今年是否闰年

set /a leap=^!(y%%4) & ^!^!(y%%100) | ^!(y%%400)

rem 上月有!d!天

set /a d=f*(28+leap)+s*30+(^!f&^!s)*31

set /a y1=y-^!(m-12)

set m=0!m!

set m=!m:~-2!

set d=0!d!

set d=!d:~-2!

set dstdate=!y1!-!m!-!d!

echo,%dstdate%

pause

【方案四】bat + ritchie lawrence 日期函数

代码如下:

@echo off

rem 假设系统日期格式为yyyy-mm-dd

set thisyear=%date:~0,4%

set thismonth=%date:~5,2%

call :datetodays %thisyear% %thismonth% 01 thisdays

set /a dstdays=%thisdays%-1

call :daystodate %dstdays% dstyear dstmonth dstday

set dstdate=%dstyear%-%dstmonth%-%dstday%

echo,%dstdate%

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

:daystodate %days% yy mm dd

setlocal enableextensions

set /a a=%1+2472632,b=4*a+3,b/=146097,c=-b*146097,c/=4,c+=a

set /a d=4*c+3,d/=1461,e=-1461*d,e/=4,e+=c,m=5*e+2,m/=153,dd=153*m+2,dd/=5

set /a dd=-dd+e+1,mm=-m/10,mm*=12,mm+=m+3,yy=b*100+d-4800+m/10

(if %mm% lss 10 set mm=0%mm%)&(if %dd% lss 10 set dd=0%dd%)

endlocal&set %2=%yy%&set %3=%mm%&set %4=%dd%&goto :eof