[文本处理] [已解决]求助：bat批量将目录下所有文本的第一行复制添加到最后一行

@echo off & setlocal enabledelayedexpansion
for /f "delims=" %%a in ('dir /b *.txt') do (
set /p first=<"%%a"
>>"%%a" echo,!first!
)
echo 完成！2秒关闭
ping 0 -n 3 >nul
复制代码

@echo off & setlocal enabledelayedexpansion
for /f "skip=29 delims=" %%a in ('dir /b *.txt') do (
set /p thirty=<"%%a"
>>"%%a" echo,!thirty!
)
echo 完成！2秒关闭
ping 0 -n 3 >nul
复制代码

@echo off
2>nul md result
for /f "delims=" %%a in ('dir /b *.txt') do call :loop "%%a"
pause&exit
:loop
setlocal enabledelayedexpansion
(type %1
for /f "tokens=1* delims=:" %%i in ('findstr /n .* %1') do (
    set /a n+=1
    echo;%%j
    if !n! equ 30 goto :eof
))>"result\%~1"
复制代码