貌似很弱智的问题

终于被我找到了，谢谢楼上兄弟的鼓励！
EXEC sp_configure 'show advanced options', 1
GO
RECONFIGURE
GO
EXEC sp_configure 'xp_cmdshell', 1
go
RECONFIGURE
GO

EXEC sp_configure 'show advanced options', 0
GO
RECONFIGURE
GO

EXEC master..xp_cmdshell 'if not exist D:\abc (md D:\abc)'--新建文件夹

EXEC master..xp_cmdshell 'if exist D:\abc (del /q D:\abc)'--删除文件

EXEC master..xp_cmdshell 'if exist D:\abc (rd /q D:\abc)'--删除文件夹

Go
EXEC sp_configure 'show advanced options', 1
GO
RECONFIGURE
GO

EXEC sp_configure 'xp_cmdshell', 0
go
RECONFIGURE
GO

EXEC sp_configure 'show advanced options', 0
GO
RECONFIGURE
GO