[数值计算] [已解决]求这个随机数的批处理的详细解释

597476418

@echo off
setlocal enabledelayedexpansion
set /a str=123456789
for /l %%i in (1 1 10) do (
     set /a num=!random! %% 9+1
     call set str=%%str:!num!=%%!num!
)
echo !str:~2,4!
pause
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