yinsigan

@echo off
set a=今日明月在
set b=%a:~0,2%
echo %b%
set c=%a:~2,2%
echo %c%
set d=%a:~-1%
echo %d%
pause


set a=今日明月在
set b=%a:~2,2%%a:~0,2%%a:~-1%
echo %b%
pause

yinsigan

set a=今日明月在
for /f "delims=明" %%i in ("%a%") do echo %%i
for /f "tokens=2 delims=日" %%i in ("%a%") do for /f "delims=在" %%j in ("%%i") do echo %%j
for /f  "tokens=2 delims=月" %%i in ("%a%") do echo %%i