需求
“Pseudocode for a traffic light controller: initialize, check that the system is powered, turn red on for 10 seconds, green on for 8 seconds, yellow on for 3 seconds, then check power again; end when power is off.”
接著試試Add a pedestrian crossing phase.Change the green interval to 15 seconds.
這張圖裡有什麼
看懂背後的決策。
01
Whether the system is powered
02
Transitioning to next light after timer expiry
03
Looping back to power check after yellow
Use this control flow graph template for any cyclic embedded controller or state machine with a periodic loop and a shutdown condition.