import asyncio, time

async def func1():
    print('func1')
    await asyncio.sleep(2)
    print('func1 end')

async def func2():
    print('func2')
    await asyncio.sleep(1)
    print('func2 end')

async def func3():
    print('func3')
    await asyncio.sleep(1)
    print('func3 end')

if __name__ == '__main__':
    start = time.time()
    f1 = func1()
    f2 = func2()
    f3 = func3()
    tasks = [f1, f2, f3]
    asyncio.run(asyncio.wait(tasks))
    print(time.time() - start)