批量制作随机字符串 [英] Make a random string in batch
问题描述
我正在尝试批量制作一个随机字符串，但我不知道该怎么做.我已经用％random％函数调用了一个数字随机字符串，但是我不知道如何永久替换变量中的某些字符:
I am trying to make a random string in batch, and I have no idea what to do. I have called a random string of numbers with the %random% function, but I have no idea how to permanently replace certain characters in my variable:
@echo off
set subkey1=%random%%random%%random%%random%%random%%random%
set subkey2=%random%%random%%random%%random%%random%%random%
set subkey3=%random%%random%%random%%random%%random%%random%
ECHO %subkey1:0=a%
ECHO %subkey1:1=b%
ECHO %subkey1:2=c%
ECHO %subkey1:3=d%
ECHO %subkey1:4=e%
ECHO %subkey1:5=f%
ECHO %subkey1:6=g%
ECHO %subkey1:7=h%
ECHO %subkey1:8=i%
ECHO %subkey1:9=j%
ECHO %subkey2:0=k%
ECHO %subkey2:1=l%
ECHO %subkey2:2=m%
ECHO %subkey2:3=n%
ECHO %subkey2:4=o%
ECHO %subkey2:5=p%
ECHO %subkey2:6=q%
ECHO %subkey2:7=r%
ECHO %subkey2:8=s%
ECHO %subkey2:9=t%
ECHO %subkey3:0=u%
ECHO %subkey3:1=v%
ECHO %subkey3:2=w%
ECHO %subkey3:3=x%
ECHO %subkey3:4=y%
ECHO %subkey3:5=z%
REM after going through all the letters, we just pick random ones
ECHO %subkey3:6=a%
ECHO %subkey3:7=g%
ECHO %subkey3:8=k%
ECHO %subkey3:9=o%
set key=%subkey1%%subkey2%%subkey3%
echo String: %key%
pause
如您所见，我能够回显不同的键，但是我想将新键保存到变量中(子键1中的EX，我想将所有0替换为a，然后保存，所以如果我看之后，在我的变量中，我可以看到新变量，并能够在不同的函数中调用它.
So as you can see, I am able to ECHO different keys, but I want to save the new one to the variable (EX in subkey 1, I wanna replace all the 0s by a's, then SAVE that so if I look at my variable afterwards, I can see the new one, and be able to call that in different functions.
推荐答案
要为变量分配值，请使用SET命令:
To assign a variable a value, use the SET command:
SET subkey1=%random%%random%%random%%random%%random%%random%
SET subkey1=%subkey1:0=a%
SET subkey1=%subkey1:1=b%
SET subkey1=%subkey1:2=c%
.
.
.
ECHO %subkey1%
当然，要注意，永远不要将%random%用作加密目的的源.
And, of course, beware that %random% should never, ever be used as a source for cryptographic purposes.
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