ECHO 请输入计算机名或直接回车使用预设计算机名：
set /p id=
reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ComputerName\ComputerName" /v "ComputerName" /d "%id%" /f >nul 2>nul
reg add "HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\ComputerName\ActiveComputerName" /v "ComputerName" /d "%id%" /f >nul 2>nul
reg add "HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters" /v "NV Hostname" /d "%id%" /f >nul 2>nul
reg add "HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters" /v "Hostname" /d "%id%" /f >nul 2>nul
reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v "AltDefaultDomainName" /d "%id%" /f >nul 2>nul
reg delete "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\SchedulingAgent" /v "OldName" /f >nul 2>nul
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@echo off&setlocal enabledelayedexpansion
set str=Test
for %%a in (a b c d e f g h i j k l m n o p q r s t u v w x y z)do set "str=!str:%%a=%%a!"
echo %str%

set str=Test
for %%a in (A B C D E F G H I J K L M N O P Q R S T U V W X Y Z)do set "str=!str:%%a=%%a!"
echo %str%
pause
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