温馨提示：

1.  httpx的代码样例支持访问http,https网页

2.  httpx不是python原生库，需要安装才能使用: pip install httpx

3.  httpx暂时还不支持SOCKS代理

import random
import asyncio

import httpx
import requests

page_url ="http://example.com"	#要访问的目标网页

#用户名密码授权
username="username"
password="password"


async def fetch(url):
	proxies={
	"http":"http://username:password@168.168.168.168:12345,
	"https":http://username:password@168.168.168.168:12345
	}
	async with httpx.AsyncClient(proxies=proxies,timeout=10) as client:
		resp=await client.get(url)
		print(f"status_code:{resp.status_code},content:{resp.content}")


def run():
	loop=asyncio.get_event_loop()
	#异步发出5次请求
	tasks=[fetch(page_url) for_in range(5)]
	loop.run_until_complete(asyncio.wait(tasks))


if__name__=='__main__':
	run()