python异步并发

import asyncio
import random
import time
import aiohttp
from aiohttp import ClientSession

async def login(i):
    async with ClientSession() as session:
        res = await session.post(url="http://10.0.104.48:18010/account/api/login", data={'password': '12345', 'mobile': '13488985003'})
        a = await res.json()
        print(i)

async def main():
    res = await asyncio.gather(*(login(i) for i in range(500)))
    return res

if __name__ == "__main__":
    a = time.time()
    asyncio.run(main())
    print(time.time() - a)