代码如下:

@echo off

::演示：删除指定路径下指定天数之前（以文件的最后修改日期为准）的文件。

::如果演示结果无误，把del前面的echo去掉，即可实现真正删除。

::本例调用了临时VBS代码进行日期计算，并统一设置系统日期格式，处理完毕

::之后再把日期格式恢复成原来的状态。摆脱了对reg命令（XP系统自带）的依赖。

rem 指定待删除文件的存放路径

set SrcDir=C:/Test/BatHome

rem 指定天数

set DaysAgo=1

>"%temp%/BackupDate.vbs" echo Set WshShell = WScript.CreateObject("WScript.Shell")

>>"%temp%/BackupDate.vbs" echo WScript.Echo WshShell.RegRead ("HKEY_CURRENT_USER/Control Panel/International/sShortDate")

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

    set "RegDateOld=%%a"

)

>"%temp%/UnifyDate.vbs" echo Set WshShell = WScript.CreateObject("WScript.Shell")

>>"%temp%/UnifyDate.vbs" echo WshShell.RegWrite "HKEY_CURRENT_USER/Control Panel/International/sShortDate", "yyyy-M-d", "REG_SZ"

cscript /nologo "%temp%/UnifyDate.vbs"

>"%temp%/DstDate.vbs" echo LastDate=date()-%DaysAgo%

>>"%temp%/DstDate.vbs" echo FmtDate=right(year(LastDate),4) ^& right("0" ^& month(LastDate),2) ^& right("0" ^& day(LastDate),2)

>>"%temp%/DstDate.vbs" echo wscript.echo FmtDate

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

    set "DstDate=%%a"

)

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

for /r "%SrcDir%" %%a in (*.*) do (

    if "%%~ta" leq "%DstDate%" (

        if exist "%%a" (

            echo del /f /q "%%a"

        )

    )

)

>"%temp%/RecoverDate.vbs" echo Set WshShell = WScript.CreateObject("WScript.Shell")

>>"%temp%/RecoverDate.vbs" echo WshShell.RegWrite "HKEY_CURRENT_USER/Control Panel/International/sShortDate", "%RegDateOld%", "REG_SZ"

cscript /nologo "%temp%/RecoverDate.vbs"

pause