[文本处理] [已解决]批处理生成随机MAC地址输出的文本开头都带有一个口，怎么能不带口？

帝尊

@echo off
> "Temp.txt" call :MAC
>> "Temp.txt" call :MAC
(
    call :MAC
	call :MAC
) >>"Temp.txt"

:MAC
setlocal EnableDelayedExpansion
cls
set a=012345789ABCDEF
set dew=26AE
set /a d2=%random%%%3+1
set /a b=%random%%%14+1
set /a c=%random%%%14+1
set /a d=%random%%%14+1
set /a e=%random%%%14+1
set /a f=%random%%%14+1
set /a g=%random%%%14+1
set /a h=%random%%%14+1
set /a i=%random%%%14+1
set /a j=%random%%%14+1
set /a k=%random%%%14+1
set /a l=%random%%%14+1
set /a m=%random%%%14+1
set MAC=!a:~%b%,1!!dew:~%d2%,1!-!a:~%d%,1!!a:~%e%,1!-!a:~%f%,1!!a:~%g%,1!-!a:~%h%,1!!a:~%i%,1!-!a:~%j%,1!!a:~%k%,1!-!a:~%l%,1!!a:~%m%,1!
echo 	%MAC%
exit /B
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这里贴不上这个口，你们可以运行一下就知道了。

Batcher

回复 1# 帝尊


不要把重定向操作放在call命令上

@echo off
setlocal enabledelayedexpansion
type nul >"Temp.txt"
call :MAC
goto :eof

:MAC
set a=012345789ABCDEF
set dew=26AE
set /a d2=%random%%%3+1
set /a b=%random%%%14+1
set /a c=%random%%%14+1
set /a d=%random%%%14+1
set /a e=%random%%%14+1
set /a f=%random%%%14+1
set /a g=%random%%%14+1
set /a h=%random%%%14+1
set /a i=%random%%%14+1
set /a j=%random%%%14+1
set /a k=%random%%%14+1
set /a l=%random%%%14+1
set /a m=%random%%%14+1
set MAC=XX!a:~%b%,1!!dew:~%d2%,1!-!a:~%d%,1!!a:~%e%,1!-!a:~%f%,1!!a:~%g%,1!-!a:~%h%,1!!a:~%i%,1!-!a:~%j%,1!!a:~%k%,1!-!a:~%l%,1!!a:~%m%,1!
>>"Temp.txt" echo,%MAC%
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帝尊

回复 2# Batcher
好的。非常感谢。