【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

rem 指定月数

set monthsago=1

for /f %%a in ('%gnudate% -d %monthsago% months ago +%%y-%%m-01') do (

    set dstdate=%%a

    )

)

echo,%dstdate%

pause

【方案二】bat + vbs

代码如下:

@echo off

rem 指定月数

set monthsago=2

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

>>%temp%/datecalculate.vbs echo strfmtdate=right(year(strlastdate),4) ^& right(0 ^& month(strlastdate),2) ^& 01

>>%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