wait_coro = asyncio.wait(tasks) # await the wait coroutine tuple = await wait_coro 等待的条件可以由默认设置为 asyncio.ALL_COMPLETED 的“return_when”参数指定。 ... # wait for all tasks to complete done, pending = await asyncio.wait(tasks, return_when=asyncio.ALL_COMPLETED) 我们可以通过将...
...# create the wait coroutinewait_coro = asyncio.wait(tasks)# await the wait coroutinetuple=awaitwait_coro 等待的条件可以由默认设置为 asyncio.ALL_COMPLETED 的“return_when”参数指定。 ...# wait for all tasks to completedone, pending =awaitasyncio.wait(tasks, return_when=asyncio.ALL_COMPLET...
本文主要包括的知识点有:yield生成器的复习并实现协程的功能、greenlet库实现协程、gevent库实现协程、asyncio异步协程的介绍、异步协程的创建与运行、任务的创建与运行、并发运行gather/wait/as_complete/wait_for等方法的实现、异步协程的嵌套、await关键字的理解等等,这些都是基础。由于篇幅比较长,打算分为两篇,第二篇...
loop = asyncio.get_event_loop() loop.run_until_complete(main()) print('TIME: ', now() - start) 如果使用的是 asyncio.gather创建协程对象,那么await的返回值就是协程运行的结果。 #dones, pendings = await asyncio.wait(tasks) #for task in dones: #print('Task ret: ', task.result()) resu...
(),':开始蒸饭')awaitasyncio.sleep(2)print(datetime.now(),':通知A某饭蒸好了')tasks=[do_washing(),steame_rice(),do_clearing()]if__name__=='__main__':loop=asyncio.get_event_loop()start_time=time.time()loop.run_until_complete(asyncio.wait(tasks))loop.close()end_time=time.time(...
AbstractEventLoop.run_until_complete(asyncio.wait(tasks)) 1. 运行直到asyncio.wait(tasks)运行完成。返回asyncio.wait(tasks)的运行结果,或者抛出异常。 asyncio.run(coro, *, debug=False) 1. 执行协程coro并返回结果。 此函数会运行传入的协程,负责管理 asyncio 事件循环,终结异步生成器,并关闭线程池。
asyncio.create_task(func2()) if __name__ == '__main__': asyncio.run(background_tasks()) 我希望这两个函数同时运行,并可以获得类似以下的输出: Running func1... Running func2... worker1 printing object worker2 printing object worker3 waiting ...
# task1 = asyncio.create_task(# say_after(1, 'hello'))# task2 = asyncio.create_task(# say_after(2, 'world'))# print(f"started at {time.strftime('%X')}")# # Wait until both tasks are completed (should take# # around 2 seconds.)# await task1# await task2## print(f"...
# create the wait coroutine wait_coro = asyncio.wait(tasks) # await the wait coroutine tuple = await wait_coro 等待的条件可以由默认设置为 asyncio.ALL_COMPLETED 的“return_when”参数指定。 ... # wait for all tasks to complete done, pending = await asyncio.wait(tasks, return_when=asyncio....
# create and wait for the task to finish await asyncio.create_task(custom_coro()) 3. 如何从任务中获取返回值? 我们可能需要将协程的值返回给调用者。我们可以通过等待从协程中检索返回值。它假定正在等待的另一个协程返回一个值。 # coroutine that returns a value ...