@echo off
split -l 2 yourfile tmp
for %%a in (tmp*) do if not defined a (set a=a&ren "%%a" a.txt) else ren "%%a" b.txt
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@echo off
setlocal ENABLEDELAYEDEXPANSION
del file1.txt&del file2.txt
for /f "delims=" %%a in (计时关机.bat) do set /a num+=1
set /a num/=2
for /f "delims=" %%b in (计时关机.bat) do (
set /a num2+=1
if !num2! leq %num% (echo %%b>>file1.txt) else echo %%b>>file2.txt
)
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@echo off
for /f "delims=:" %%a in ('findstr /n /v $ yourfile') do set/a l=%%a/2
split -l %l% yourfile tmp
for %%a in (tmp*) do if not defined a (set "a=a"&ren "%%a" a.txt) else ren "%%a" b.txt
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@echo off
for /f "delims=:" %%a in ('findstr /n .* "test.txt"') do (
  set SumRow=%%a
)
set /a HalfRow=SumRow/2
set /a MinuRow=SumRow-HalfRow
for /f "tokens=1-2 delims=:" %%a in ('findstr /n .* "test.txt"') do (
  if %%a leq %HalfRow% (
    echo.%%b>>"A.TXT"
  )
)
more +%MinuRow% "test.txt">>"B.TXT"
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@echo off
for /f "delims=" %%i in ('type "a.txt"^|find /v /c ""') do set /a n=%%i/2
for /f "tokens=1* delims=:" %%i in ('findstr /i /n .* a.txt') do (
if %%i gtr %n% (>>a2.txt echo.%%j) else >>a1.txt echo.%%j)
pause
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for /f "delims=:" %%a in ('findstr /n .* "test.txt"') do (
  set SumRow=%%a
)
set /a HalfRow=SumRow/2
set /a MinuRow=SumRow-HalfRow
for /f "tokens=1-2 delims=:" %%a in ('findstr /n .* "test.txt"') do (
  if %%a leq %HalfRow% (
    echo.%%b>>"A.TXT"
  )
)
more +%MinuRow% "test.txt">>"B.TXT"
pause
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@echo off
for /f "delims=:" %%a in ('findstr /n .* "yourfile"') do set/a n=%%a/2
for /f "tokens=1* delims=:" %%i in ('findstr /n .* "yourfile"') do (
      if %%i leq %n% (>>a.txt echo.%%j) else (>>b.txt echo.%%j)
)
pause
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