@echo off
set "第几行=3"
set "重复次数=5"
for /f "tokens=1* delims=:" %%a in ('more +9 "%~f0"^|findstr /n .*') do (
    if "%%a" equ "%第几行%" (
        for /l %%i in (1 1 %重复次数%) do echo;%%b
    ) else echo;%%b
)
pause&exit
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