loop.run_forever(): 在调用 stop() 之前将一直运行。
Use abreakstatement to stop aforloop in Python. For example, max=4counter=0forainrange(max):ifcounter==3:print("counter value=3. Stop the for loop")breakelse:print("counter value<3. Continue the for loop. Counter value=",counter)counter=counter+1continuebreak ...
while True: print(next(iterator)) except StopIteration: pass This example creates an iterator that loops through a list of numbers using the built-in iter() method. Furthermore, when we loop through the iterator in a while loop to try to print the next item, we use the built-in next(...
,python使用缩进,块内的行必须通过制表符缩进,或相对于周围的命令缩进4个空格。...1到50(使用for循环)。...For 循环 While 循环遍历一组对象 条件为false时自动终止没有break也可以结束 使用break语句才能退出循环 如果我们希望循环在某个时刻结束,我们最终必须使条件为False In...to break out of ...
loop.stop() while loop.is_running(): await asyncio.sleep(0.1) async def main(): loop = asyncio.new_event_loop() thread = Thread(target=run_event_loop, args=(loop,)) thread.start() # Give the loop a chance to start await asyncio.sleep(0.5) ...
三、代码示例(Python) import keyboard def main_loop(): is_running = True while is_running: # 模拟测试任务(如数据处理、硬件控制等) print('Testing... Press Esc to stop.') # 检测Esc键是否按下 if keyboard.is_pressed('esc'): is_running = False ...
start() if not getattr(options, 'background', False): # when running as a separate process, the main thread needs to loop # in order to allow for shutdown by contrl-c try: while True: observer.join(2) except KeyboardInterrupt: observer.stop() print(" Stopped asset watcher.")...
while (true) { // By default, sleep until something happens. 计算epool超时 auto epoll_timeout = std::optional<std::chrono::milliseconds>{}; ... auto pending_functions = epoll.Wait(epoll_timeout); // WakeMainInitThread导致Wait收到新事件返回 ...
static void ep_rbtree_insert(struct eventpoll *ep, struct epitem *epi) { int kcmp; struct rb_node **p = &ep->rbr.rb_node, *parent = NULL; struct epitem *epic; while (*p) { parent = *p; epic = rb_entry(parent, struct epitem, rbn); kcmp = ep_cmp_ffd(&epi->ffd, &epic...
delete_many({'experiment_id':self.experiment_id})elifdelete_or_quit=='q':raiseKeyboardInterrupt()else:self.modification_since_last_try=raw_input("Enter a short description of what has changed since"" the last try: ")try_i=2whileTrue:candidate_id=self.experiment_id+'_try'+str(try_i)if...