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@echo off set Max=10 set SrcStr=123456 setlocal EnableDelayedExpansion for /l %%a in (0,1,%max%) do if "!SrcStr:~%%a,1!" equ "" set StrLen=%%a && goto :endfor :endfor endlocal set /a StrFlag=%StrLen%-1 call set DstStr=%%SrcStr:~0,%StrFlag%%% echo %DstStr%
@echo off set SrcStr=123456 echo %SrcStr:~0,-1% pause
@echo off set a=123456 set b=%a:~0,-1% echo %b%