异步http请求aiohttp模块演示

#reuqests.get() 同步的代码 ->异步 *** 作aiohttp
#pip install aiohttp
import asyncio
import aiohttp
urls = {'网址'}

async def aiodownload(url):
    name = url.rsplit("/",1)[1]
#aiohttp.ClientSession() == reuqests
    async with aiohttp.ClientSession()as session: #requests
        async with session.get(url)as resp:#resp =requests.get()

             with open (name,'wb')as f:#创建文件  ##resp.content.read() 
                 f.write(await resp.content.read())#读取内容识异步的，需要await挂起
    print(name)

async def main():
    tasks = []
    for url in urls:
        tasks.append(aiodownload(url))
    await asyncio.wait(tasks)

#resp.content.read()== resp.content    #resp.text() == resp.text     #resp.json()=resp.json()