Windows批处理设置随机字符串

这是一个完整的版本，包含 16 个字符，包括大写、小写和数字。这是一个新手版本，因此它不包含任何复杂的命令，如“for”，但它运行良好。唯一的缺点是，如果您生成的行太多，它可能会滞后并且偶尔会停止工作

@echo off
title Random
:trigger
set trigger=16
:genKeys
set /a trigger=%trigger% - 1
set /a choose=(%random%*3/32767)+1
if %choose% == 1 goto lowercase
if %choose% == 2 goto uppercase
if %choose% == 3 goto number
:lowercase
set /a lower=(%random%*25/32767)+0
if %lower% == 0 set gen%trigger%=a
if %lower% == 1 set gen%trigger%=b
if %lower% == 2 set gen%trigger%=c
if %lower% == 3 set gen%trigger%=d
if %lower% == 4 set gen%trigger%=e
if %lower% == 5 set gen%trigger%=f
if %lower% == 6 set gen%trigger%=g
if %lower% == 7 set gen%trigger%=h
if %lower% == 8 set gen%trigger%=i
if %lower% == 9 set gen%trigger%=j
if %lower% == 10 set gen%trigger%=k
if %lower% == 11 set gen%trigger%=l
if %lower% == 12 set gen%trigger%=m
if %lower% == 13 set gen%trigger%=n
if %lower% == 14 set gen%trigger%=o
if %lower% == 15 set gen%trigger%=p
if %lower% == 16 set gen%trigger%=q
if %lower% == 17 set gen%trigger%=r
if %lower% == 18 set gen%trigger%=s
if %lower% == 19 set gen%trigger%=t
if %lower% == 20 set gen%trigger%=u
if %lower% == 21 set gen%trigger%=v
if %lower% == 22 set gen%trigger%=w
if %lower% == 23 set gen%trigger%=x
if %lower% == 24 set gen%trigger%=y
if %lower% == 25 set gen%trigger%=z
if %trigger% == 0 goto keys
goto genKeys
:uppercase
set /a upper=(%random%*25/32767)+0
if %upper% == 0 set gen%trigger%=A
if %upper% == 1 set gen%trigger%=B
if %upper% == 2 set gen%trigger%=C
if %upper% == 3 set gen%trigger%=D
if %upper% == 4 set gen%trigger%=E
if %upper% == 5 set gen%trigger%=F
if %upper% == 6 set gen%trigger%=G
if %upper% == 7 set gen%trigger%=H
if %upper% == 8 set gen%trigger%=I
if %upper% == 9 set gen%trigger%=J
if %upper% == 10 set gen%trigger%=K
if %upper% == 11 set gen%trigger%=L
if %upper% == 12 set gen%trigger%=M
if %upper% == 13 set gen%trigger%=N
if %upper% == 14 set gen%trigger%=O
if %upper% == 15 set gen%trigger%=P
if %upper% == 16 set gen%trigger%=Q
if %upper% == 17 set gen%trigger%=R
if %upper% == 18 set gen%trigger%=S
if %upper% == 19 set gen%trigger%=T
if %upper% == 20 set gen%trigger%=U
if %upper% == 21 set gen%trigger%=V
if %upper% == 22 set gen%trigger%=W
if %upper% == 23 set gen%trigger%=X
if %upper% == 24 set gen%trigger%=Y
if %upper% == 25 set gen%trigger%=Z
if %trigger% == 0 goto keys
goto genKeys
:number
set /a number=(%random%*9/32767)+0
set gen%trigger%=%number%
goto genKeys
:keys
cls
echo %gen15%%gen14%%gen13%%gen12%%gen11%%gen10%%gen9%%gen8%%gen7%%gen6%%gen5%%gen4%%gen3%%gen2%%gen1%%gen0%
pause >nul
goto trigger

@Echo Off
Setlocal EnableDelayedExpansion
Set _RNDLength=8
Set _Alphanumeric=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789
Set _Str=%_Alphanumeric%987654321
:_LenLoop
IF NOT “%_Str:~18%”==”” SET _Str=%_Str:~9%& SET /A _Len+=9& GOTO :_LenLoop
SET _tmp=%_Str:~9,1%
SET /A _Len=_Len+_tmp
Set _count=0
SET _RndAlphaNum=
:_loop
Set /a _count+=1
SET _RND=%Random%
Set /A _RND=_RND%%%_Len%
SET _RndAlphaNum=!_RndAlphaNum!!_Alphanumeric:~%_RND%,1!
If !_count! lss %_RNDLength% goto _loop
Echo Random string is !_RndAlphaNum!
pause & exit