inittab

@echo off&setlocal enabledelayedexpansion
set "str=1234567890abcdefghijklmnopqrstuvwxyz@#$_+-"
for /l %%i in (0,1,199) do (
set/a ran=!random!%%42&call set "st=!st!%%str:~!ran!,1%%"
)
echo 整行输出: !st!&echo.&echo 分列输出:
for /l %%j in (0,10,190) do (
set /a m=%%j
call set "st1=!st1!%%st:~!m!,10%% "
call echo %%st:~!m!,10%%
)
echo.&echo 分段输出: !st1!
pause
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