For commands, there are two situations, one is asynchronous, one is synchronization. The sync command only defines the tasks that can be completed in a short period of time, such as information requested, information transmission, etc. For tasks that take longer, it should be defined as an asynchronous command to prevent blocking of commands. Synchronous Command Value 0 Direct Passage Direct Channel Returns the Generated Observation Plan Asynchronous Command Non 0 First ENCoding = 'GB2312'?> 0 gives OCS, indicating that the command receives the new thread to develop the observed plan. In the process of planning, the Status channel is sent to the OCS and performs the schedule to make the scheduled XML format. Give OCS Note: Only is set to true when sending status, the rest is the "False generated XML format as a value, embedded in in the status command.
