下发完成后，关闭ftp连接

sf_machine_connect/wizard/action_up.py

@@ -67,6 +67,8 @@ class UpSelectWizard(models.TransientModel):
                 _logger.info("======%s下发成功======" % a.display_name)
                 # 下发成功标识
                 item.button_state = True
+            ftp.close_ftp()
+
             up_time = str(datetime.now())
             sequence_str = ','.join(sequence_collect)
             self.workorder_id.delivery_records.create({