• 留下QQ方便沟通细节
• 指明要检索的目录,如D:\AAA,C:\BBB
• 指明系统版本,即BAT的应用环境,如XP,  WIN7 32位, WIN7 64位,  WIN8 ,WIN10等

@echo off&setlocal enabledelayedexpansion
set n=0
for /f "delims=" %%i in ('dir /b *.txt^|sort ^/+100000000000000') do (
     set flag=%%i
     set flag=!flag:~0,6!
     if "!n!"=="0" set name6=!flag!&set n=1
     if "!flag!"=="!name6!" (
         set/a m+=1
         set "#!m!=%%i"
     ) else (
       if !m! LSS 4 (
          if not exist "d:\test\!#1!" (
             for /l %%j in (1,1,!m!) do copy "!#%%j!" "d:\test"
             pause&exit
          )
        )
      
     )
)
if not exist "d:\test\!#1!" (
             for /l %%j in (1,1,!m!) do copy "!#%%j!" "d:\test"
)
pause
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@echo off 
::设置检索源目录,多个目录用空格隔开
set "sd="d:\test" "d:\cmd""
::目的目录
set "dd=d:\备份"

if not exist "%dd%" md "%dd%"
for /f %%a in ('datex -o -1') do set _date=%%a
for /f "delims=" %%a in ('dir /a-d/s/b %sd%') do (
	for /f %%i in ('dir /tc "%%a"^|findstr /ri "[0-9]*-[0-9]*-[0-9]*" ') do (
		if "%%i" equ "%_date%" copy /y "%%a" "%dd%"
	)
)
pause 
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