from multiprocessing import Processfrom time import sleepdef f(time):    sleep(time)def run_with_limited_time(func, args, kwargs, time):    """Runs a function with time limit    :param func: The function to run    调用办法    :param args: The functions args, given as tuple     办法传参    :param kwargs: The functions keywords, given as dict    :param time: The time limit in seconds      设置的限度工夫    :return: True if the function ended successfully. False if it was terminated.    """    p = Process(target=func, args=args, kwargs=kwargs)    p.start()    p.join(time)    if p.is_alive():        p.terminate()        return False    return Trueif __name__ == '__main__':    print(run_with_limited_time(f, (1.5, ), {}, 2.5)) # True    print(run_with_limited_time(f, (3.5, ), {}, 2.5)) # False