[文本处理] [已解决]bat批处理把文本行列二次分散到字符，修改后再二次集中为文本？

@echo off
setlocal enabledelayedexpansion
for /f "delims=" %%a in ('dir /b /a-d *.txt') do (
	set /a n1=n3=0
	for /f "delims=" %%b in ('type "%%a"') do (
		set "str1=%%b"
		set /a n1+=1,n2=0
		for /l %%m in (0,1,30) do (
			if not "!str1:~%%m,1!" equ "" (
				set /a n2+=1,n3+=1
				>>"%%~na.!n1!.!n2!%%~xa" echo !str1:~%%m,1!
			)
		)
		if !n2! geq !n3! (
			set n3=!n2!
		)
	)
	>1.2.2.txt echo 0
	for /l %%p in (1,1,!n1!) do (
		set "str3="
		for /l %%q in (1,1,!n3!) do (
			if exist "%%~na.%%p.%%q%%~xa" (
				set /p str2=<"%%~na.%%p.%%q%%~xa"
				set "str3=!str3!!str2!"
			)
		)
		>>"%%~na-#%%~xa" echo !str3!
	)
)
endlocal
pause
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