為了管理協程和I/O的回撥函式，asyncio庫的事件迴圈也能基於定時的方式呼叫普通的函式，使用call_soon()函式，例子如下： import asyncio import functools def callback(arg, *, kwarg="default"): print("callback invoked with {} and {}".format(arg, kwarg)) async def main(loop): print("registering callbacks") loop.call_soon(callback,

1) wrapped = functools.partial(callback, kwarg="not default") loop.call_soon(wrapped,

2) await asyncio.sleep(0.1) event_loop = asyncio.get_event_loop() try: print("entering event loop") event_loop.run_until_complete(main(event_loop)) finally: print("closing event loop") event_loop.close()結果輸出如下：enteringeventloopregisteringcallbackscallbackinvokedwith1anddefaultcallbackinvokedwith2andnotdefaultclosingeventloop