self.running_var = self.momentum * self.running_var + (1 - self.momentum) * var else:#这个简单:测试时候直接用全局平均值套公式计算一下就行了 xc = x - self.running_mean xn = xc / ((np.sqrt(self.running_var + 10e-7))) out = self.gamma * xn + self.beta#共享操作:恢复分布 re...
Total time running dict_matched002: 1.4066696167e-05 seconds 2. 使用timeit模块 另一种方法是使用timeit模块,用来计算平均时间消耗。 执行下面的脚本可以运行该模块。 1 python -m timeit -n 4 -r 5 -s "import timing_functions" "timing_functions.random_sort(2000000)" 这里的timing_functions是Python脚...
import time# 定义第一个def coding:for x in range(3):print('%s正在写代码\n' % x)time.sleep(1)# 定义第二个def playing:start = time.timefor x in range(3):print('%s正在玩游戏\n' % x)time.sleep(1)end = time.timerunning_time = end - startprint('总共运行时间 : %.5f 秒' % ...
importtime importschedule defjob1: print("I'm running on thread %s"% threading.current_thread) defjob2: print("I'm running on thread %s"% threading.current_thread) defjob3: print("I'm running on thread %s"% threading.current_thread) defrun_threaded(job_func): job_thread = threading....
is_running=False# 设置固定运行时间为1秒fixed_time=1# 绑定信号处理函数signal.signal(signal.SIGALRM,signal_handler)# 设置定时器的时间间隔signal.setitimer(signal.ITIMER_REAL,fixed_time)# 开始循环is_running=Truewhileis_running:# 循环的代码# ...pass# 关闭定时器signal.setitimer(signal.ITIMER_REAL...
async def long_running_task(): await asyncio.sleep(3) # 如果超过2秒还未完成,将会抛出异常 print("Task finished without timeout.") 通过深入研究Python标准库对装饰器的支持,我们可以看到装饰器在多种编程场景下的广泛应用,包括但不限于同步、异步环境下的函数增强、上下文管理以及错误处理等,大大提升了代码...
defrun(self)->None:logging.info('%r start running'%self)try:whileself.semaphore.acquire():logging.info('%r hold the semaphore'%self)finally:self.semaphore.release()def__repr__(self):return'SemaphoreTestThread(%s)'%self.idif__name__=='__main__':logging.basicConfig(level=logging.INFO,form...
游戏主循环running=Truewhilerunning:foreventinpygame.event.get():ifevent.type==pygame.QUIT:running=...
def run(main, *, debug=False): if events._get_running_loop() is not None: raise RuntimeError( "asyncio.run() cannot be called from a running event loop") if not coroutines.iscoroutine(main): raise ValueError("a coroutine was expected, got {!r}".format(main)) loop = events.new_...
print('do func time :', ts) def loop_monitor(): while True: time_printer() time.sleep(5) # 暂停 5 秒 if __name__ == "__main__": loop_monitor() 主要缺点: 只能设定间隔,不能指定具体的时间,比如每天早上 8:00 sleep 是一个阻塞函数,也就是说 sleep 这一段时间,程序什么也不能操作...