import asyncio
import time


async def func1():
    print("hellword")
    await asyncio.sleep(3)  # await是挂起，异步操作代码
    print("hellword1")


async def func2():
    print("hellword2")
    await asyncio.sleep(2)  # await是挂起，异步操作代码
    print("hellword3")


async def func3():
    print("hellword4")
    await asyncio.sleep(4)  # await是挂起，异步操作代码
    print("hellword5")


async def main():
    tasks = [asyncio.create_task(func1()),
             asyncio.create_task(func2()),
             asyncio.create_task(func3())]
    await asyncio.wait(tasks)


if __name__ == '__main__':
    t1 = time.time()
    asyncio.run(main())
    t2 = time.time()
    print(t2 - t1)

# async def func1():
#     print("hellword")
#     # time.sleep(3)  # 出现同步操作时候，异步会中断
#     await asyncio.sleep(3)# await是挂起，异步操作代码
#     print("hellword1")
#
#
# async def func2():
#     print("hellword2")
#     # time.sleep(2)
#     await asyncio.sleep(2)# await是挂起，异步操作代码
#     print("hellword3")
#
#
# async def func3():
#     print("hellword4")
#     # time.sleep(4)
#     await asyncio.sleep(4)# await是挂起，异步操作代码
#     print("hellword5")


# if __name__ == '__main__':
#     f1 = func1()
#     f2 = func2()
#     f3 = func3()
#     t1 = time.time()3
#     tasks = [f1, f2, f3]
#     # 一次启动多个任务
#     asyncio.run(asyncio.wait(tasks))
#     t2 = time.time()
#     print(t2-t1)