我编写了批处理脚本将CSS文件复制到某个目录，问题是当我打开目标目录中的文件时感叹号被删除CSS。
原始 CSS 包含带有感叹号的样式，例如：
.foo
{
color: pink !important;
}
我的 CSS 结果变成
.foo
{
color: pink important;
}
我调查了这个的根本原因，并基于：感叹号在批处理文件中不断被删除
但我无法弄清楚我需要在哪里禁用延迟扩展。
仅供参考，我的批次正在执行以下操作：
对于以逗号分隔的每个主题字符串，查找与特定字符串匹配的行号的开始和结束。
现在我有开始和结束行号（例如 500 和 1000）
复制文件内容，除了第 500 行和第 1000 行之间
最终文件被复制到目标目录
如果您需要更多说明，请告诉我，在此先感谢。
批次（片段）：
set themes=Platinum,Granite,Sun,Sky,Burgundy,Leaf,Twilight,Sharepoint 2010,Sharepoint 2013
rem Directory that contains theme css files
set RUNTIME_DEST=%K2DIR%\K2 SmartForms Runtime\Styles\Themes
REM Do something with each substring
call :parse "%themes%"
goto :eof
:parse
setlocal
for %%a in ("%themes:,=" "%") do (
call :getLineNumber %%a
)
endlocal
goto :eof
:getLineNumber
setlocal
echo file name is %~1
set filename=%~1
rem Get start and end line numbers of the unwanted section
for /F "delims=:" %%a in ('findstr /N /C:"PickerCollectionThemeStart" "%RUNTIME_DEST%\%filename%.css"') do (
set start=%%a
)
for /F "delims=:" %%a in ('findstr /N /C:"PickerCollectionThemeEnd" "%RUNTIME_DEST%\%filename%.css"') do (
set end=%%a
)
if not defined start (
echo start not defined...
set start=0
set end=0
)
echo start val = !start!
echo end val = !end!
call :resetTheme "%filename%" "%start%" "%end%"
endlocal
goto :eof
:resetTheme
setlocal
set filename=%~1
set start=%~2
set end=%~3
echo %fileName%
echo %start%
echo %end%
echo ---------------
rem Create a copy file to modify
xcopy "%RUNTIME_DEST%\%filename%.css" "%cd%\Batch_tmp" /y /z /r
echo creating tmp copy...
rem Rename the file so we can modify and create finalized version
ren "Batch_tmp\%fileName%.css" "%fileName%_tmp.css"
echo coping all line except section...
rem Copy all lines, except the ones in start-end section
(for /F "tokens=1* delims=:" %%a in ('findstr /N "^" "Batch_tmp\%fileName%_tmp.css"') do (
if %%a lss %start% echo(%%b
if %%a gtr %end% echo(%%b
)) > Batch_tmp\!fileName!.css
echo copying to blackpearl dir
rem Finally move the css over to blackpearl directory
setlocal DisableDelayedExpansion
xcopy "Batch_tmp\%fileName%.css" "%RUNTIME_DEST%" /y /z /r
endlocal
endlocal
goto :eof
:eof
pause
更新
以下是我根据建议工作的解决方案。不同之处在于，按照说明，在脚本开头设置 EnableDelayedExpansion 以对整个批处理范围产生影响，然后仅在适用的地方设置 DisableDelayedExpansion。
set themes=Platinum,Granite,Sun,Sky,Burgundy,Leaf,Twilight,Sharepoint 2010,Sharepoint 2013
rem Directory that contains theme css files
set RUNTIME_DEST=%K2DIR%\K2 SmartForms Runtime\Styles\Themes
REM Do something with each substring
call :parse "%themes%"
goto :eof
:parse
setlocal
for %%a in ("%themes:,=" "%") do (
echo ------------------------
call :getLineNumber %%a
)
endlocal
goto :eof
:getLineNumber
setlocal
echo file name is %~1
set filename=%~1
rem Get start and end line numbers of the unwanted section
for /F "delims=:" %%a in ('findstr /N /C:"PickerCollectionThemeStart" "%RUNTIME_DEST%\%filename%.css"') do (
set start=%%a
)
for /F "delims=:" %%a in ('findstr /N /C:"PickerCollectionThemeEnd" "%RUNTIME_DEST%\%filename%.css"') do (
set end=%%a
)
if not defined start (
echo start not defined...
set start=0
set end=0
)
echo start val = !start!
echo end val = !end!
call :resetTheme "%filename%" "%start%" "%end%"
endlocal
goto :eof
:resetTheme
setlocal
set filename=%~1
set start=%~2
set end=%~3
echo %fileName%
echo %start%
echo %end%
rem Create a copy file to modify
xcopy "%RUNTIME_DEST%\%filename%.css" "%cd%\Batch_tmp" /y /z /r
echo creating tmp copy...
rem Rename the file so we can modify and create finalized version
ren "Batch_tmp\%fileName%.css" "%fileName%_tmp.css"
echo coping all line except section...
rem Copy all lines, except the ones in start-end section
(for /F "tokens=1* delims=:" %%a in ('findstr /N "^" "Batch_tmp\%fileName%_tmp.css"') do (
setlocal DisableDelayedExpansion
if %%a lss %start% echo(%%b
if %%a gtr %end% echo(%%b
endlocal
)) > Batch_tmp\!fileName!.css
echo copying to blackpearl dir
rem Finally move the css over to blackpearl directory
xcopy "Batch_tmp\%fileName%.css" "%RUNTIME_DEST%" /y /z /r
endlocal
goto :eof
:eof