day35作业

from multiprocessing import Process
    import time
    import random

    def task(n):
        time.sleep(random.randint(1,3))
        print('-------->%s' %n)

    if __name__ == '__main__':
        p1=Process(target=task,args=(1,))
        p2=Process(target=task,args=(2,))
        p3=Process(target=task,args=(3,))

        p1.start()
        p2.start()
        p3.start()

        print('-------->4')