skynjupt

@echo off
chcp 936>nul

set "str=今日明月在"

:: 00 请分别截取“今日”、“明月”、“在”，并显示出来
set "str01=%str:~,2%"
set "str02=%str:~2,2%"
set "str03=%str:~-1,1%"
echo %str01%
echo %str02%
echo %str03%

:: 01 通过变量截取把 “今日明月在” 变成 “明月今日在” 显示出来
set /p=%str02%%str01%%str03%<nul
echo.

pause
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