[文本处理] 请教乱码的批处理文件如何修复？

@echo off
:menu1
Echo 1 - 尌�� 酄‘怆 ?nsb
Echo 2 - 尌�� 酄‘怆 ?scb
SET /P var="尌��: " 
if  %var% equ 1 goto menu_nsb
if  %var% equ 2 goto menu
goto error1
:error1
echo 偄イキ?�オ�噜オ猸�� 绋岖?
goto menu1
:menu_nsb
Echo 傠ˉ啜猊 �牑犵�:
Echo 1 - 悹岑牚��犫?nsb 岑��璀氍 猊�徕�?
Echo 2 - 悹岑牚��犫?nsb 猊�徕�??�忉忏癄�?
Echo 3 - 嚑癄���犫� nsb ě 岑��璀��?猊�徕�
Echo 4 - 嚑癄���犫� nsb ě 猊�徕� ?�忉忏癄�?
set /p var="嚑�犵�: "
@if %var% equ 1 goto first
@if %var% equ 2 goto second
@if %var% equ 3 goto third
@if %var% equ 4 goto four
goto error
:error
Echo 崶 �酄ⅷ�飙?幛カ牠 ㈦‘?�牑牠�?
goto menu_nsb
:first
CSRPacker.exe unpack -i nsb
goto menu_nsb
:second
CSRPacker.exe unpack -p -i nsb
goto menu_nsb
:third
CSRPacker.exe pack -i nsb.txt
@echo off
ren nsb "nsb %Date:~0,2%.%Date:~3,2%.%Date:~6,4% (%TIME:~0,2%.%TIME:~0,2%.%TIME:~6,2%)"
md .\Buckup
move "nsb %Date:~0,2%.%Date:~3,2%.%Date:~6,4% (%TIME:~0,2%.%TIME:~0,2%.%TIME:~6,2%)" ./Buckup
@echo 戔犩氅 nsb 錉┇ �ムガラ�??癄��?buckup
ren nsb.txt.sav nsb
@echo  庘啷�牚猕喈�牠��?nsb �ムエ�キ��牠 ?．猱??���ㄠ��牠�??癄�� ?岙遴牠キē?
pause&exit
:four
CSRPacker.exe pack -m -i nsb.txt
@echo off
ren nsb "nsb %Date:~0,2%.%Date:~3,2%.%Date:~6,4% (%TIME:~0,2%.%TIME:~0,2%.%TIME:~6,2%)"
md .\Buckup
move "nsb %Date:~0,2%.%Date:~3,2%.%Date:~6,4% (%TIME:~0,2%.%TIME:~0,2%.%TIME:~6,2%)" ./Buckup
@echo 戔犩氅 nsb 錉┇ �ムガラ�??癄��?buckup
ren nsb.txt.sav nsb
@echo  庘啷�牚猕喈�牠��?nsb �ムエ�キ��牠 ?．猱??���ㄠ��牠�??癄�� ?岙遴牠キē?
pause&exit
:menu
Echo 傠ˉ啜猊 �牑犵�:
Echo 1 - 悹岑牚��犫?scb 岑��璀氍 猊�徕�?
Echo 2 - 悹岑牚��犫?scb 猊�徕�??�忉忏癄�?
Echo 3 - 嚑癄���犫� scb ě 岑��璀��?猊�徕�
Echo 4 - 嚑癄���犫� scb ě 猊�徕� ?�忉忏癄�?
set /p var="嚑�犵�: "
@if %var% equ 1 goto �え�
@if %var% equ 2 goto あ?
@if %var% equ 3 goto 忄?
@if %var% equ 4 goto 绁怆啷
goto error2
:error2
Echo 崶 �酄ⅷ�飙?幛カ牠 ㈦‘?�牑牠�?
goto menu
:�え�
CSRPacker.exe unpack -i scb
goto menu
:あ?
CSRPacker.exe unpack -p -i scb
goto menu
:忄?
CSRPacker.exe pack -i scb.txt
@echo off
ren scb "scb %Date:~0,2%.%Date:~3,2%.%Date:~6,4% (%TIME:~0,2%.%TIME:~0,2%.%TIME:~6,2%)"
md .\Buckup
move "scb %Date:~0,2%.%Date:~3,2%.%Date:~6,4% (%TIME:~0,2%.%TIME:~0,2%.%TIME:~6,2%)" ./Buckup
@echo 戔犩氅 scb 錉┇ �ムガラ�??癄��?buckup
ren scb.txt.sav scb
@echo 庘啷�牚猕喈�牠��?scb �ムエ�キ��牠 ?．猱??���ㄠ��牠�??癄�� ?岙遴牠キē?
pause&exit
:绁怆啷
CSRPacker.exe pack -m -i scb.txt
ren scb "scb %Date:~0,2%.%Date:~3,2%.%Date:~6,4% (%TIME:~0,2%.%TIME:~0,2%.%TIME:~6,2%)"
md .\Buckup
move "scb %Date:~0,2%.%Date:~3,2%.%Date:~6,4% (%TIME:~0,2%.%TIME:~0,2%.%TIME:~6,2%)" ./Buckup
@echo 戔犩氅 scb 錉┇ �ムガラ�??癄��?buckup
ren scb.txt.sav scb
@echo 庘啷�牚猕喈�牠��?scb �ムエ�キ��牠 ?．猱??���ㄠ��牠�??癄�� ?岙遴牠キē?
pause&exit
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