qq641255849

@echo off
for /l %%a in (11,1,999) do (set str=%%a&call :a)
pause
:a
set n3=%str:~0,1%
set n2=%str:~1,1%
set n1=%str:~2,1%
if "%n1%" equ "" (set rts=%n2%%n3%) else (set rts=%n1%%n2%%n3%)
if %rts% equ %str% (echo %str%)
goto :eof
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上学时想的..