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xiaoyuwxz

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tT
发表于 2022-11-28 09:35 | 显示全部帖子

[日期时间] 批处理怎么删除指定多少天前的日期格式目录的文件夹？

如在E:\备份文件\  下有很多时间格式的目录   2022-08-12 2022-09-10 2022-09-11 2022-10-28 2022-10-29  这些目录是通过计划任务每天备份文件生成的，现在想删除30天以前的目录 ，也就是说要删除 2022-10-29以前的所有目录，怎么写批处理。
原先做的是每次在备份后自动删除前30天那一天的备份，那是因为电脑天天开着（给服务器备份mysql数据库用），可以删除30天前每天的备份，但是用来备份工作文件的话，电脑不是每天开着的话，会导到前边的目录会遗留下来，而不能自动删除掉，需手工再去删。
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xiaoyuwxz

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2楼
发表于 2022-11-28 15:33 | 显示全部帖子
回复 2# hfxiang
谢谢你的指点。

我试了这个命令，它是以目录的修改日期来判断，而删除日期目录内的子目录，在有残留目录的时候，遍历时间很长，而且会显示报错“错误：系统找不到指定的文件。”
测试中还发现这命令还有个缺点，一旦它自动地删除了最下级目录的文件或目录（目录内还有多级子目录和文件的存在），其父目录的修改时间就会改变，继而就不再删除父目录了。命令执行结束后，还有好多目录还是都存在着。

我设想的是直接根据目录的内容（就是日期形式，用日期格式来做运算）来判断，继而直接rd掉这个日期格式目录（最外层的这个目录）

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3楼
发表于 2022-11-28 23:48 | 显示全部帖子
回复 5# Batcher


   我使用了第五个方案的代码，没有动作，请帮忙分析下原因。

现目录下的文件如下：
G:\beifen 的目录

2022-11-28  23:46    <DIR>          .
2022-11-28  23:46    <DIR>          ..
2022-11-28  23:08    <DIR>          2018-07-08
2022-11-28  23:08    <DIR>          2018-07-10
2022-11-28  23:08    <DIR>          2018-07-17
2022-11-28  23:07    <DIR>          2021-07-23
2022-11-28  23:08    <DIR>          2022-07-06
2022-11-28  23:07    <DIR>          2022-11-25
2022-11-28  23:07    <DIR>          2022-11-26
2022-11-28  23:07    <DIR>          2022-11-27
2022-11-28  23:07    <DIR>          2022-11-28
2022-11-28  23:46             3,651 a.txt
2022-11-28  23:46                 0 b.txt
2021-07-23  10:40               264 backup.log
2018-07-17  11:57             1,431 beifen - 副本.bat
2018-07-17  10:58             1,432 beifen.bat
2022-11-28  23:38             1,175 ddeell.bat

生成的DstDate.vbs 内容为：
LastDate=date()-3
FmtDate=right(year(LastDate),4) & right("0" & month(LastDate),2) & right("0" & day(LastDate),2)
wscript.echo FmtDate

运行ddeell.bat得到 的内容为：


G:\beifen>REM ----------------------------------------------------------------------------------------

G:\beifen>REM 演示：删除指定路径下指定天数之前（以文件夹名中包含的日期字符串为准）的文件夹。

G:\beifen>REM 如果演示结果无误，把rd前面的echo去掉，即可实现真正删除。

G:\beifen>REM 本例假设文件夹名中包含的日期字符串（比如：Archive-2009-12-25）

G:\beifen>REM ----------------------------------------------------------------------------------------

G:\beifen>REM 指定待删除文件夹的存放路径

G:\beifen>set SrcDir=G:\beifen

G:\beifen>REM 指定天数

G:\beifen>set DaysAgo=3

G:\beifen>echo LastDate=date()-3 1>"C:\Users\ADMINI~1\AppData\Local\Temp\DstDate.vbs"

G:\beifen>echo FmtDate=right(year(LastDate),4) & right("0" & month(LastDate),2) & right("0" & day(LastDate),2) 1>>"C:\Users\ADMINI~1\AppData\Local\Temp\DstDate.vbs"

G:\beifen>echo wscript.echo FmtDate 1>>"C:\Users\ADMINI~1\AppData\Local\Temp\DstDate.vbs"

G:\beifen>for /F %a in ('cscript /nologo "C:\Users\ADMINI~1\AppData\Local\Temp\DstDate.vbs"') do (set "DstDate=%a" )

G:\beifen>(set "DstDate=20221125" )

G:\beifen>set DstDate=2022-11-25

G:\beifen>setlocal enabledelayedexpansion

G:\beifen>for / %a in ("G:\beifen\*.*") do (if "%~ta" LEQ "2022-11-25" (
set "FolderDate=%~na"  
set "FolderDate=!FolderDate:~8,10!"  
if "!FolderDate!" LEQ "2022-11-25" (if exist "%a\" (rd /s /q "%a" ) )
) )

G:\beifen>(if "2022-11-28 23:08" LEQ "2022-11-25" (
set "FolderDate=2018-07-08"  
set "FolderDate=!FolderDate:~8,10!"  
if "!FolderDate!" LEQ "2022-11-25" (if exist "G:\beifen\2018-07-08\" (rd /s /q "G:\beifen\2018-07-08" ) )
) )

G:\beifen>(if "2022-11-28 23:08" LEQ "2022-11-25" (
set "FolderDate=2018-07-10"  
set "FolderDate=!FolderDate:~8,10!"  
if "!FolderDate!" LEQ "2022-11-25" (if exist "G:\beifen\2018-07-10\" (rd /s /q "G:\beifen\2018-07-10" ) )
) )

G:\beifen>(if "2022-11-28 23:08" LEQ "2022-11-25" (
set "FolderDate=2018-07-17"  
set "FolderDate=!FolderDate:~8,10!"  
if "!FolderDate!" LEQ "2022-11-25" (if exist "G:\beifen\2018-07-17\" (rd /s /q "G:\beifen\2018-07-17" ) )
) )

G:\beifen>(if "2022-11-28 23:07" LEQ "2022-11-25" (
set "FolderDate=2021-07-23"  
set "FolderDate=!FolderDate:~8,10!"  
if "!FolderDate!" LEQ "2022-11-25" (if exist "G:\beifen\2021-07-23\" (rd /s /q "G:\beifen\2021-07-23" ) )
) )

G:\beifen>(if "2022-11-28 23:08" LEQ "2022-11-25" (
set "FolderDate=2022-07-06"  
set "FolderDate=!FolderDate:~8,10!"  
if "!FolderDate!" LEQ "2022-11-25" (if exist "G:\beifen\2022-07-06\" (rd /s /q "G:\beifen\2022-07-06" ) )
) )

G:\beifen>(if "2022-11-28 23:07" LEQ "2022-11-25" (
set "FolderDate=2022-11-25"  
set "FolderDate=!FolderDate:~8,10!"  
if "!FolderDate!" LEQ "2022-11-25" (if exist "G:\beifen\2022-11-25\" (rd /s /q "G:\beifen\2022-11-25" ) )
) )

G:\beifen>(if "2022-11-28 23:07" LEQ "2022-11-25" (
set "FolderDate=2022-11-26"  
set "FolderDate=!FolderDate:~8,10!"  
if "!FolderDate!" LEQ "2022-11-25" (if exist "G:\beifen\2022-11-26\" (rd /s /q "G:\beifen\2022-11-26" ) )
) )

G:\beifen>(if "2022-11-28 23:07" LEQ "2022-11-25" (
set "FolderDate=2022-11-27"  
set "FolderDate=!FolderDate:~8,10!"  
if "!FolderDate!" LEQ "2022-11-25" (if exist "G:\beifen\2022-11-27\" (rd /s /q "G:\beifen\2022-11-27" ) )
) )

G:\beifen>(if "2022-11-28 23:07" LEQ "2022-11-25" (
set "FolderDate=2022-11-28"  
set "FolderDate=!FolderDate:~8,10!"  
if "!FolderDate!" LEQ "2022-11-25" (if exist "G:\beifen\2022-11-28\" (rd /s /q "G:\beifen\2022-11-28" ) )
) )

G:\beifen>endlocal

G:\beifen>pause
请按任意键继续. . .

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4楼
发表于 2022-12-2 09:44 | 显示全部帖子
本帖最后由 xiaoyuwxz 于 2022-12-2 09:49 编辑

回复 8# hfxiang 
  1. @rem 保存为ANSI格式

  2. set "SrcDir=G:\文件备份"

  3. set "DaysAgo=30"

  4. pushd "%SrcDir%"

  5. forfiles /p "%SrcDir%" /s /m *.* /d -%DaysAgo% /c "cmd /c if @isdir==FALSE del @path" 

  6. setlocal enabledelayedexpansion

  7. for /f "delims=" %%a in ('dir/b/s/ad^|sort/r') do (

  8. 	set "Empty_Folder="

  9. 	for /f "delims=" %%b in ('dir/a/b "%%~a"') do set "Empty_Folder=%%~b"

  10. 	if "!Empty_Folder!." equ "." rd/q/s "%%~a">nul 2>&1

  11. )

  12. endlocal

  13. popd
复制代码
使用以上代码进行测试，发现它会遍历当前目录下的所有目录，并把目录中或下层子目录（下下层）的文件或目录删了一部分
备份了当天的，然后测试，

文件备份后 “2022-12-02” 的目录属性
527 MB (552,927,232 字节)
1,273 个文件，204 个文件夹

运行代码后 2022-12-02” 的目录属性
369 MB (386,961,408 字节)
154 个文件，56 个文件夹

也就是说没有进行日期的判断  （备份产生的这个日期文件夹都存在未被删除）

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5楼
发表于 2022-12-2 09:54 | 显示全部帖子
回复 7# Batcher

修改后测试
显示以下代码
  1. G:\beifen>REM ---------------------------------------------------------------------------------------- 

  2. 

  3. G:\beifen>REM 演示：删除指定路径下指定天数之前（以文件夹名中包含的日期字符串为准）的文件夹。 

  4. 

  5. G:\beifen>REM 如果演示结果无误，把rd前面的echo去掉，即可实现真正删除。 

  6. 

  7. G:\beifen>REM 本例假设文件夹名中包含的日期字符串（比如：Archive-2009-12-25） 

  8. 

  9. G:\beifen>REM ---------------------------------------------------------------------------------------- 

  10. 

  11. G:\beifen>REM 指定待删除文件夹的存放路径 

  12. 

  13. G:\beifen>set SrcDir=G:\beifen 

  14. 

  15. G:\beifen>REM 指定天数 

  16. 

  17. G:\beifen>set DaysAgo=26 

  18. 

  19. G:\beifen>echo LastDate=date()-26 1>"C:\Users\Lenovo\AppData\Local\Temp\DstDate.vbs" 

  20. 

  21. G:\beifen>echo FmtDate=right(year(LastDate),4) & right("0" & month(LastDate),2) & right("0" & day(LastDate),2) 1>>"C:\Users\Lenovo\AppData\Local\Temp\DstDate.vbs" 

  22. 

  23. G:\beifen>echo wscript.echo FmtDate 1>>"C:\Users\Lenovo\AppData\Local\Temp\DstDate.vbs" 

  24. 

  25. G:\beifen>for /F %a in ('cscript /nologo "C:\Users\Lenovo\AppData\Local\Temp\DstDate.vbs"') do (set "DstDate=%a" ) 

  26. 

  27. G:\beifen>(set "DstDate=20221106" ) 

  28. 

  29. G:\beifen>set DstDate=2022-11-06 

  30. 

  31. G:\beifen>setlocal enabledelayedexpansion 

  32. 

  33. G:\beifen>for / %a in ("G:\beifen\*.*") do (if "%~ta" LEQ "2022-11-06" (

  34. set "FolderDate=%~na"  

  35.  set "FolderDate=!FolderDate:~0,10!"  

  36.  if "!FolderDate!" LEQ "2022-11-06" (if exist "%a\" (echo rd /s /q "%a" ) ) 

  37. ) ) 

  38. 

  39. G:\beifen>(if "2022-12-02 09:31" LEQ "2022-11-06" (

  40. set "FolderDate=2022-10-31"  

  41.  set "FolderDate=!FolderDate:~0,10!"  

  42.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-10-31\" (echo rd /s /q "G:\beifen\2022-10-31" ) ) 

  43. ) ) 

  44. 

  45. G:\beifen>(if "2022-12-02 09:31" LEQ "2022-11-06" (

  46. set "FolderDate=2022-11-01"  

  47.  set "FolderDate=!FolderDate:~0,10!"  

  48.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-01\" (echo rd /s /q "G:\beifen\2022-11-01" ) ) 

  49. ) ) 

  50. 

  51. G:\beifen>(if "2022-12-02 09:31" LEQ "2022-11-06" (

  52. set "FolderDate=2022-11-02"  

  53.  set "FolderDate=!FolderDate:~0,10!"  

  54.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-02\" (echo rd /s /q "G:\beifen\2022-11-02" ) ) 

  55. ) ) 

  56. 

  57. G:\beifen>(if "2022-12-02 09:31" LEQ "2022-11-06" (

  58. set "FolderDate=2022-11-03"  

  59.  set "FolderDate=!FolderDate:~0,10!"  

  60.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-03\" (echo rd /s /q "G:\beifen\2022-11-03" ) ) 

  61. ) ) 

  62. 

  63. G:\beifen>(if "2022-12-02 09:31" LEQ "2022-11-06" (

  64. set "FolderDate=2022-11-04"  

  65.  set "FolderDate=!FolderDate:~0,10!"  

  66.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-04\" (echo rd /s /q "G:\beifen\2022-11-04" ) ) 

  67. ) ) 

  68. 

  69. G:\beifen>(if "2022-12-02 09:31" LEQ "2022-11-06" (

  70. set "FolderDate=2022-11-07"  

  71.  set "FolderDate=!FolderDate:~0,10!"  

  72.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-07\" (echo rd /s /q "G:\beifen\2022-11-07" ) ) 

  73. ) ) 

  74. 

  75. G:\beifen>(if "2022-12-02 09:31" LEQ "2022-11-06" (

  76. set "FolderDate=2022-11-08"  

  77.  set "FolderDate=!FolderDate:~0,10!"  

  78.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-08\" (echo rd /s /q "G:\beifen\2022-11-08" ) ) 

  79. ) ) 

  80. 

  81. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  82. set "FolderDate=2022-11-09"  

  83.  set "FolderDate=!FolderDate:~0,10!"  

  84.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-09\" (echo rd /s /q "G:\beifen\2022-11-09" ) ) 

  85. ) ) 

  86. 

  87. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  88. set "FolderDate=2022-11-10"  

  89.  set "FolderDate=!FolderDate:~0,10!"  

  90.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-10\" (echo rd /s /q "G:\beifen\2022-11-10" ) ) 

  91. ) ) 

  92. 

  93. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  94. set "FolderDate=2022-11-11"  

  95.  set "FolderDate=!FolderDate:~0,10!"  

  96.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-11\" (echo rd /s /q "G:\beifen\2022-11-11" ) ) 

  97. ) ) 

  98. 

  99. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  100. set "FolderDate=2022-11-14"  

  101.  set "FolderDate=!FolderDate:~0,10!"  

  102.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-14\" (echo rd /s /q "G:\beifen\2022-11-14" ) ) 

  103. ) ) 

  104. 

  105. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  106. set "FolderDate=2022-11-15"  

  107.  set "FolderDate=!FolderDate:~0,10!"  

  108.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-15\" (echo rd /s /q "G:\beifen\2022-11-15" ) ) 

  109. ) ) 

  110. 

  111. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  112. set "FolderDate=2022-11-16"  

  113.  set "FolderDate=!FolderDate:~0,10!"  

  114.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-16\" (echo rd /s /q "G:\beifen\2022-11-16" ) ) 

  115. ) ) 

  116. 

  117. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  118. set "FolderDate=2022-11-17"  

  119.  set "FolderDate=!FolderDate:~0,10!"  

  120.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-17\" (echo rd /s /q "G:\beifen\2022-11-17" ) ) 

  121. ) ) 

  122. 

  123. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  124. set "FolderDate=2022-11-18"  

  125.  set "FolderDate=!FolderDate:~0,10!"  

  126.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-18\" (echo rd /s /q "G:\beifen\2022-11-18" ) ) 

  127. ) ) 

  128. 

  129. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  130. set "FolderDate=2022-11-21"  

  131.  set "FolderDate=!FolderDate:~0,10!"  

  132.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-21\" (echo rd /s /q "G:\beifen\2022-11-21" ) ) 

  133. ) ) 

  134. 

  135. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  136. set "FolderDate=2022-11-22"  

  137.  set "FolderDate=!FolderDate:~0,10!"  

  138.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-22\" (echo rd /s /q "G:\beifen\2022-11-22" ) ) 

  139. ) ) 

  140. 

  141. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  142. set "FolderDate=2022-11-23"  

  143.  set "FolderDate=!FolderDate:~0,10!"  

  144.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-23\" (echo rd /s /q "G:\beifen\2022-11-23" ) ) 

  145. ) ) 

  146. 

  147. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  148. set "FolderDate=2022-11-24"  

  149.  set "FolderDate=!FolderDate:~0,10!"  

  150.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-24\" (echo rd /s /q "G:\beifen\2022-11-24" ) ) 

  151. ) ) 

  152. 

  153. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  154. set "FolderDate=2022-11-25"  

  155.  set "FolderDate=!FolderDate:~0,10!"  

  156.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-25\" (echo rd /s /q "G:\beifen\2022-11-25" ) ) 

  157. ) ) 

  158. 

  159. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  160. set "FolderDate=2022-11-28"  

  161.  set "FolderDate=!FolderDate:~0,10!"  

  162.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-28\" (echo rd /s /q "G:\beifen\2022-11-28" ) ) 

  163. ) ) 

  164. 

  165. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  166. set "FolderDate=2022-11-29"  

  167.  set "FolderDate=!FolderDate:~0,10!"  

  168.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-29\" (echo rd /s /q "G:\beifen\2022-11-29" ) ) 

  169. ) ) 

  170. 

  171. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  172. set "FolderDate=2022-11-30"  

  173.  set "FolderDate=!FolderDate:~0,10!"  

  174.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-11-30\" (echo rd /s /q "G:\beifen\2022-11-30" ) ) 

  175. ) ) 

  176. 

  177. G:\beifen>(if "2022-12-02 09:02" LEQ "2022-11-06" (

  178. set "FolderDate=2022-12-01"  

  179.  set "FolderDate=!FolderDate:~0,10!"  

  180.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-12-01\" (echo rd /s /q "G:\beifen\2022-12-01" ) ) 

  181. ) ) 

  182. 

  183. G:\beifen>(if "2022-12-02 09:46" LEQ "2022-11-06" (

  184. set "FolderDate=2022-12-02"  

  185.  set "FolderDate=!FolderDate:~0,10!"  

  186.  if "!FolderDate!" LEQ "2022-11-06" (if exist "G:\beifen\2022-12-02\" (echo rd /s /q "G:\beifen\2022-12-02" ) ) 

  187. ) ) 

  188. 

  189. G:\beifen>endlocal

  190. 

  191. G:\beifen>pause

  192. 请按任意键继续. . . 
复制代码
对文件无删除动作

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6楼
发表于 2022-12-2 15:11 | 显示全部帖子
回复 14# Batcher


    这个方案可以了，不过有个问题，有几个目录是2021-06-23  2021-07-23 2021-07-24 的目录，它不进行删除，其他我设置的目录可以删掉
  1. G:\beifen>rem @echo off 

  2. 

  3. G:\beifen>REM ---------------------------------------------------------------------------------------- 

  4. 

  5. G:\beifen>REM 演示：删除指定路径下指定天数之前（以文件夹名中包含的日期字符串为准）的文件夹。 

  6. 

  7. G:\beifen>REM 如果演示结果无误，把rd前面的echo去掉，即可实现真正删除。 

  8. 

  9. G:\beifen>REM 本例假设文件夹名中包含的日期字符串（比如：Archive-2009-12-25） 

  10. 

  11. G:\beifen>REM ---------------------------------------------------------------------------------------- 

  12. 

  13. G:\beifen>REM 指定待删除文件夹的存放路径 

  14. 

  15. G:\beifen>set "SrcDir=G:\beifen" 

  16. 

  17. G:\beifen>REM 指定天数 

  18. 

  19. G:\beifen>set "DaysAgo=5" 

  20. 

  21. G:\beifen>echo LastDate=date()-5 1>"C:\Users\ADMINI~1\AppData\Local\Temp\DstDate.vbs" 

  22. 

  23. G:\beifen>echo FmtDate=right(year(LastDate),4) & right("0" & month(LastDate),2) & right("0" & day(LastDate),2) 1>>"C:\Users\ADMINI~1\AppData\Local\Temp\DstDate.vbs" 

  24. 

  25. G:\beifen>echo wscript.echo FmtDate 1>>"C:\Users\ADMINI~1\AppData\Local\Temp\DstDate.vbs" 

  26. 

  27. G:\beifen>for /F %a in ('cscript /nologo "C:\Users\ADMINI~1\AppData\Local\Temp\DstDate.vbs"') do (set "DstDate=%a" ) 

  28. 

  29. G:\beifen>(set "DstDate=20221127" ) 

  30. 

  31. G:\beifen>set "DstDate=2022-11-27" 

  32. 

  33. G:\beifen>setlocal enabledelayedexpansion 

  34. 

  35. G:\beifen>for / %a in ("G:\beifen\*.*") do (

  36. set "FolderDate=%~na"  

  37.  set "FolderDate=!FolderDate:~8,10!"  

  38.  if "!FolderDate!" LEQ "2022-11-27" (if exist "%a\" (rd /s /q "%a" ) ) 

  39. ) 

  40. 

  41. G:\beifen>(

  42. set "FolderDate=2021-06-08"  

  43.  set "FolderDate=!FolderDate:~8,10!"  

  44.  if "!FolderDate!" LEQ "2022-11-27" (if exist "G:\beifen\2021-06-08\" (rd /s /q "G:\beifen\2021-06-08" ) ) 

  45. ) 

  46. 

  47. G:\beifen>(

  48. set "FolderDate=2021-07-23"  

  49.  set "FolderDate=!FolderDate:~8,10!"  

  50.  if "!FolderDate!" LEQ "2022-11-27" (if exist "G:\beifen\2021-07-23\" (rd /s /q "G:\beifen\2021-07-23" ) ) 

  51. ) 

  52. 

  53. G:\beifen>(

  54. set "FolderDate=2021-07-24"  

  55.  set "FolderDate=!FolderDate:~8,10!"  

  56.  if "!FolderDate!" LEQ "2022-11-27" (if exist "G:\beifen\2021-07-24\" (rd /s /q "G:\beifen\2021-07-24" ) ) 

  57. ) 

  58. 

  59. G:\beifen>(

  60. set "FolderDate=2021-07-25"  

  61.  set "FolderDate=!FolderDate:~8,10!"  

  62.  if "!FolderDate!" LEQ "2022-11-27" (if exist "G:\beifen\2021-07-25\" (rd /s /q "G:\beifen\2021-07-25" ) ) 

  63. ) 

  64. 

  65. G:\beifen>(

  66. set "FolderDate=2022-09-08"  

  67.  set "FolderDate=!FolderDate:~8,10!"  

  68.  if "!FolderDate!" LEQ "2022-11-27" (if exist "G:\beifen\2022-09-08\" (rd /s /q "G:\beifen\2022-09-08" ) ) 

  69. ) 

  70. 

  71. G:\beifen>(

  72. set "FolderDate=2022-11-25"  

  73.  set "FolderDate=!FolderDate:~8,10!"  

  74.  if "!FolderDate!" LEQ "2022-11-27" (if exist "G:\beifen\2022-11-25\" (rd /s /q "G:\beifen\2022-11-25" ) ) 

  75. ) 

  76. 

  77. G:\beifen>(

  78. set "FolderDate=2022-11-26"  

  79.  set "FolderDate=!FolderDate:~8,10!"  

  80.  if "!FolderDate!" LEQ "2022-11-27" (if exist "G:\beifen\2022-11-26\" (rd /s /q "G:\beifen\2022-11-26" ) ) 

  81. ) 

  82. 

  83. G:\beifen>(

  84. set "FolderDate=2022-11-27"  

  85.  set "FolderDate=!FolderDate:~8,10!"  

  86.  if "!FolderDate!" LEQ "2022-11-27" (if exist "G:\beifen\2022-11-27\" (rd /s /q "G:\beifen\2022-11-27" ) ) 

  87. ) 

  88. 

  89. G:\beifen>(

  90. set "FolderDate=2022-11-28"  

  91.  set "FolderDate=!FolderDate:~8,10!"  

  92.  if "!FolderDate!" LEQ "2022-11-27" (if exist "G:\beifen\2022-11-28\" (rd /s /q "G:\beifen\2022-11-28" ) ) 

  93. ) 

  94. 

  95. G:\beifen>endlocal

  96. 

  97. G:\beifen>pause

  98. 请按任意键继续. . . 
复制代码

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7楼
发表于 2022-12-2 15:31 | 显示全部帖子
回复 13# aloha20200628


    谢谢你的回复，我使用你的代码测试了，输入不同的日期后，有时能删除，有时不能删除（就是说有时能删一个，有时能正确全删，有时没反应），输入的日期我是按 “0000-00-00” 的格式输入的。 我把set qd=2022-11-30 这样直接定义后测试没有效果。

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8楼
发表于 2022-12-2 15:46 | 显示全部帖子
回复 11# hfxiang


   谢谢你的回复，这个象是linux上的find命令，它也是按修改时间来计算的。我的本意是要用目录的日期形式来判断而进行删除。不是根据目录的创建或修改时间来删除。当然，用时间来计算可以作为最后一种方法来考虑使用，毕竟原备份出来的目录时间是每天的固定时间。
我也测试了下，还是不准确，会存在误删的情况

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9楼
发表于 2022-12-2 19:30 | 显示全部帖子
回复 19# Batcher


    完全可以了，谢谢！

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发表于 2022-12-5 15:43 | 显示全部帖子
回复 21# hfxiang


    这代码相当好，测试完全正确。太谢谢了！

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