@echo off
setlocal enabledelayedexpansion
::file path 代表game.exe 路径
set fp="filepath"
set /p choose="你的选择？：1,2,3"
echo.>tmp
::source.txt 代表原文件，1.txt,2.txt，3.txt代表要修改的选项
if %choose%==1 (set secondfile=1.txt)
if %choose%==2 (set secondfile=2.txt)
if %choose%==3 (set secondfile=3.txt)

(for /f "delims=" %%a in (source.txt) do (
set str1=%%a
set /p str2=
set t1=!str1:~1,5!
set t2=!str2:~1,5!
if  !t1!==!t2!  ( echo !str2!>>tmp ) else ( echo !str1! >>tmp )
))<%secondfile%
move /y tmp source.txt
call %fp%
pause
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