monsterbatch

setlocal enabledelayedexpansion

set n=1

for /f %%i in (1.txt) do (

        set str=%%i

        set str1=!str:他娘的=TND!

        if !n! equ 1 (echo !str1!>1.txt&set /a n+=1) else echo !str1!>>1.txt
)

pause