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pythondaemonthread

發布時間: 2024-09-18 06:31:27

python daemon thread 什麼概念

daemon
A boolean value indicating whether this thread is a daemon thread (True) or not (False). This must be set before start() is called, otherwise RuntimeError is raised. Its initial value is inherited from the creating thread; the main thread is not a daemon thread and therefore all threads created in the main thread default to daemon = False.
The entire Python program exits when no alive non-daemon threads are left.
當daemon被設置為True時,如果主線程退出,那麼子線程也將跟著退出,
反之,子線程將繼續運行,直到正常退出。

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