异步python

async def sayH(nu, s1):
     await asyncio.sleep(2)
     print(f'{nu}', end='')
     print(f'{s1}*{nu}')
async def main(nu, s1):
     i=1
     while i < nu:       
 	 task=asyncio.create_task(sayH(i,s1))
         await task
         i += 1

asyncio.run(main(9, 's'))
1s*1
2s*2
3s*3
4s*4
5s*5
6s*6
7s*7
8s*8