Events are a distinct concurrency concept useful for managing I/O and related multi-tasking responsibilities.
事件是一个不同的并发概念，对管理 I/O 和相关的多任务职责很有用。
2
It includes multi-perspective views and enables drill-down analysis of events and exceptions.
它提供多角度视图，允许对事件和异常进行向下钻取分析。
3
To build Ada designs, you can use behavioral and multi-interface ports, so you can create links between ports with the correct interfaces, send procedures, functions, events and triggered operations.