--启用xp_cmdshellUSE master EXEC sp_configure 'show advanced options', 1 RECONFIGURE WITH OVERRIDE EXEC sp_configure 'xp_cmdshell', 1 RECONFIGURE WITH OVERRIDE EXEC sp_configure   'show advanced options', 0RECONFIGURE WITH OVERRIDE --关闭xp_cmdshellUSE master EXEC sp_configure 'show advanced options', 1 RECONFIGURE WITH OVERRIDE EXEC sp_configure 'xp_cmdshell', 0 RECONFIGURE WITH OVERRIDE EXEC sp_configure   'show advanced options', 0RECONFIGURE WITH OVERRIDE