77七

@echo off
cd /d "%~dp0"
set /a b=-2,d=-2
for %%i in (*.txt) do (
	setlocal
	call :1 "%%i"
	endlocal
)
pause & exit

	:1
	for /f "delims=" %%a in ('find /c /v "" ^<"%~1"') do (
		echo %%a
		set n=%%a
	)
	if %b% gtr 0 (
		if %d% gtr 0 (
			set /a s=b,e=b+d-1
		) else (
			set /a s=b+d+1,e=b
		)
	) else (
		if %d% gtr 0 (
			set /a s=n+b+1,e=s+d-1
		) else (
			set /a s=n+b+d+2,e=n+b+1
		)
	)
	echo 删除第 %s% - %e% 行
	(for /f "tokens=1* delims=[]" %%a in ('find /n /v "" ^<"%~1"') do (
		if %%a lss %s% (
			echo=%%b
		) else if %%a gtr %e% (
			echo=%%b
		)
	))>$
	move $ "%~1"
	exit /b
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b 为开始行，d 为删除行数，都可以为正、负数

77七

回复 3# 77七


   修改30-36行代码，解决行首出现”[“ ”]“丢失问题

(for /f "delims=" %%a in ('find /n /v "" ^<"%~1"') do (
	set str=%%a
	setlocal enabledelayedexpansion
	if %%a lss %s% (
		echo=!str:*]=!
	) else if %%a gtr %e% (
		echo=!str:*]=!
	)
	endlocal
))>$
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