协程嵌套协程

import asyncio
import functools

# 第三层协程
async def test1():
    print('我是test1')
    await asyncio.sleep(1)
    print('test1已经睡了1秒')
    await asyncio.sleep(3)
    print('test1又睡了3秒')
    return 'xiong'

# 第三层协程
async def test2():
    print('我是test2')
    await asyncio.sleep(2)
    print('test2已经睡了2秒')
    await asyncio.sleep(2)
    print('test2又睡了2秒')
    return 'fan'

# 第三层协程
async def test3():
    print('我是test3')
    await asyncio.sleep(3)
    print('test3已经睡了3秒')
    await asyncio.sleep(1)
    print('test3又睡了1秒')
    return 'yong'

# 第三层协程
async def test4():
    print('我是test4')
    await asyncio.sleep(4)
    print('test4已经睡了4秒')
    await asyncio.sleep(1)
    print('test4又睡了1秒')
    return 'fan'

# 协程回调函数
def callback_test1(name, future):
    print(future.result()[0]+name)

# 第二层协程
async def main():
    tasks = [
        asyncio.ensure_future(test1()),
        asyncio.ensure_future(test2()),
        asyncio.ensure_future(test3()),
    ]
    res = await asyncio.gather(*tasks)
    return res

# 第二层协程
async def main1():
    res = await test4()
    return res

# 最外层协程（主入口）
async def z_main():
    tasks = [
        asyncio.ensure_future(main()),
        asyncio.ensure_future(main1())
    ]
    # 用了偏函数传其他参数
    tasks[0].add_done_callback(functools.partial(callback_test1, 'fanyong'))
    res1 = await asyncio.gather(*tasks)
    return res1

if __name__ == '__main__':
    # tasks = [
    #     asyncio.ensure_future(test1()),
    #     asyncio.ensure_future(test2()),
    #     asyncio.ensure_future(test3()),
    # ]
    # tasks[0].add_done_callback(functools.partial(callback_test1, 'fanyong'))
    loop = asyncio.get_event_loop()
    res2 = loop.run_until_complete(z_main())
    print(res2)