wsjxwj

@echo off
set str=今日明月在
set aa=%str:~0,2%&set bb=%str:~2,2%&set cc=%str:~-1%
::分别输出"今日"，"明月","在"
echo %aa%
echo %bb%
echo %cc% 
pause >nul
::输出"明月今日在"
echo.%bb%%aa%%cc%
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