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after

after(n, E)

E is the base event for the after operator and n is either:

  • A positive integer

  • An expression that evaluates to a positive integer value

Returns true if the base event E has occurred at least n times since activation of the associated state. Otherwise, the operator returns false.

In a chart with no input events, after(n, tick) or after(n, wakeup) returns true if the chart has woken up n times or more since activation of the associated state.

Resets the counter for E to 0 each time the associated state reactivates.


after

after(n, sec)

after(n, msec)

after(n, usec)

n is any positive number or expression. secmsec, and usec are keywords that denote the simulation time elapsed since activation of the associated state.

Returns true if n specified seconds (sec), milliseconds (msec), or microseconds (usec) of simulation time have elapsed since activation of the associated state. Otherwise, the operator returns false.

Resets the counter for secmsec, and usec to 0 each time the associated state reactivates.


事件类型

after(n, tick) or after(n, wakeup) ;after(n, tick)为计数n 次 返回TRUE ,否则FALSE, after(n, wakeup)每次唤醒n 次才会返回TRUE 否则返回FALSE

时间

after(n, sec)

after(n, msec)

after(n, usec)

分别对应 n 秒 ,n 毫秒 ,n 微秒

最后

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