Therefore, in this situation, we create two case classes, one containing nothing (empty) that indicates the MailBox is empty and one containing the data (Full) with the message data in it.
因此，在这种情况下，我们将创建两个case类，一个不包含任何内容Empty，这表示MailBox为空，另一个包含消息数据Full。
The ICS message bus and mailbox are used in application layer of the software architecture, which make it easy to transfer data and communicate each other between processes.
在应用层开发上研发任务间通讯服务（ICS）消息总线和邮箱服务，承担模块化设计的各功能进程的通讯控制和数据交互。
The ICS message bus and mailbox are used in application layer of the software architecture, which make it easy to transfer data and communicate each other between processes.
在应用层开发上研发任务间通讯服务（ICS）消息总线和邮箱服务，承担模块化设计的各功能进程的通讯控制和数据交互。
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