将返回值从协程传递到回调函数，而不使用await

import asyncio

async def coroutine(callback):
    # 协程逻辑
    result = await some_async_operation()
    callback(result)

def callback(result):
    # 处理返回值
    print(result)

# 调用协程
asyncio.ensure_future(coroutine(callback))

import asyncio

async def coroutine():
    # 协程逻辑
    result = await some_async_operation()
    return result

def callback(future):
    # 处理返回值
    result = future.result()
    print(result)

# 调用协程
loop = asyncio.get_event_loop()
future = asyncio.ensure_future(coroutine())
future.add_done_callback(callback)
loop.run_until_complete(future)