同步对象event

'''
event.wait()  #设定阻塞，此时线程会被阻塞，等遇到event.set()时，线程会继续运行
event.set()
event.clear()  #
'''

import time,threading

class Boss(threading.Thread):
    def run(self):
        print('Boss：','今晚加班到10点')
        time.sleep(1)
        event.set()
        time.sleep(8)
        print('Boss:','现在下班啦')
        event.set()

class Worker(threading.Thread):
    def run(self):
        event.wait()
        print(self.name,'啊啊啊啊！！！！！！')
        time.sleep(4)
        event.clear()
        event.wait()
        print(self.name,'欧耶！！！！！！！')
        event.clear()


if __name__ == '__main__':

    event = threading.Event()

    l = []
    for i in range(5):
        l.append(Worker())
    l.append(Boss())

    for i in l:
        i.start()

    for i in l:
        i.join()
    print('ending--------------')