【python爬虫】aiohttp模块的异步协程代码模板_with open(name, mode='w') as f: f.write(await ren.

aiohttp模块的使用：

import aiohttp
import asyncio
 
urls = [
    "",
    "",
    ""
]
 
async def download(url):
    name = url.rsplit("/",1)[1]
    #发送请求
    async with aiohttp.ClientSession() as session:
       async with session.get(url) as resp:
            with open(name, mode="wb") as f:
                f.write(await resp.content.read())  #读取内容为异步的，需要await挂起
    print(name,"done!")
 
async def main():
    tasks = []
    for url in urls:
        tasks.append(download(url))
 
    await asyncio.wait(tasks)
 
if __name__ == '__main__':
    asyncio.run(main())