Python学习笔记：同步对象event

import threading,time

class Boss(threading.Thread):
    def run(self):
        print("BOSS：今晚大家都要加班到22:00。")
        print(event.isSet())    # False
        event.set()
        time.sleep(5)
        print("BOSS：<22:00>可以下班了。")
        print(event.isSet())
        event.set()


class Worker(threading.Thread):
    def run(self):

        event.wait()    #一旦event被设定，等同于pass
        print("Worker：哎......命苦啊！")
        time.sleep(1)
        event.clear()
        event.wait()
        print("Worker:OhYeah!")


if __name__ == "__main__":
    event = threading.Event()

    threads=[]
    for i in range(5):
        threads.append(Worker())
    threads.append(Boss())
    for t in threads:
        t.start()
    for t in threads:
        t.join()

    print("ending...")

运行结果：

BOSS：今晚大家都要加班到22:00。
False
Worker：哎......命苦啊！
Worker：哎......命苦啊！
Worker：哎......命苦啊！
Worker：哎......命苦啊！
Worker：哎......命苦啊！
BOSS：<22:00>可以下班了。
False
Worker:OhYeah!
Worker:OhYeah!
Worker:OhYeah!
Worker:OhYeah!
Worker:OhYeah!
ending...