简单爬虫代码

import urllib.request

import gevent

from gevent import monkey

def downloader(img_name,img_url):

 req = urllib.request.urlopen(img_url)

img = req.read()

with open(img_name,"wb") as   f：

f.write(img)

def main():

gevent.joinall([

gevent.spawn(downloader,'01.jpg.',//'photocdn.tv.sohu.com/img/20181122/vrsa_hor_1542854674142_9522819_t39s2_pic28.jpg"')

gevent.spawn(downloader,'02.jpg','//photocdn.tv.sohu.com/img/20180614/vrsa_hor_1528959586706_9434506_W3160_pic28.jpg')

])

if __name__=='__main__'：

main()