pymssql连接mssql2008出错,报错信息20017, 'DB-Lib error message 20017, severity 9
pymssql.OperationalError: (20017, 'DB-Lib error message 20017, severity 9:\nUnexpected EOF from the server\nDB-Lib error message 20002, severity 9:\nAdaptive Server connection failed\n')